What strategies are you planing to use on Brotherhood?
My strategy is to run less in the floor and run more in the rooftops, i will go walk more on the floor and use my assassins recruits to help me...like killing guards with the Arrow Shower and etc.
And i will usually use my assassins to make awesome and cool kills, just like in the E3 cinematic trailer. Ezio just walks like a badass and then the assassins kill the guards that are running foward him. It's Awesome.
And you? what is you strategy and plans for brotherhood?
I think I'll be going through each mission like any other Assassin's Creed game: by myself. That is, until a large group of guards surround me or are blocking an exit/way to a target. I like to think that their minds will be as "Oh, it's been just one guy this whole time and he's just walking towards us? This'll be easy! And--Hey, why is he holding his arm up like th--" (BAM) 
I'll playthrough the game regularly once as always, letting things flow progressively. The next time around will be Eagle's Bruise, so I'll be trying to not round up a brotherhood at all. The third time around I'll be trying to max out the brotherhood in an attempt to have my minions do everything for me throughout the entire game. At the end of the day I'll compare and contrast and see what works better.
Doing it yourself or other people doing it for you? Or both?
I think I'll be going through each mission like any other Assassin's Creed game: by myself. That is, until a large group of guards surround me or are blocking an exit/way to a target.
Nice idea ! 
I like to think that their minds will be as "Oh, it's been just one guy this whole time and he's just walking towards us? This'll be easy! And--Hey, why is he holding his arm up like th--" (BAM)
LOL, loved it! HAHAH 
I just think that in this game you NEED to always be notoriety, because you are just a man with a white hood, sword, crossbow and other weapons, free-running and killing. So i think that when you pass near a guard or a group of guards, they need to automatically go after you, because they are BORGIA GUARDS so they need to know who you are. you are the arch nemesis of the BORGIAS!! so they Must to go after you at the first time they see! don't you guys agree?
I'm thinking that everyone pretty much knows who Ezio is now,as seen in the cinematic trailer, so I'll just walk around and use the Brotherhood as a secret service, taking out enemies from afar. Like at the end of the Enter Rome trailer when the Brotherhood takes out the target's guards and Ezio walks up for an execution, I think Ezio's assassination's should send a message and be theatrical. This would be a great contrast to number 2, in which people knew OF Ezio but referred to him as the demon or the assassin (among other things).
So pretty much I want everything like the cinematic E3 trailer.
I'm thinking that everyone pretty much knows who Ezio is now,as seen in the cinematic trailer, so I'll just walk around and use the Brotherhood as a secret service, taking out enemies from afar. Like at the end of the Enter Rome trailer when the Brotherhood takes out the target's guards and Ezio walks up for an execution, I think Ezio's assassination's should send a message and be theatrical. This would be a great contrast to number 2, in which people knew OF Ezio but referred to him as the demon or the assassin (among other things).So pretty much I want everything like the cinematic E3 trailer.
Same here, now you are a masater assassin, and you are in the borgia's territory, so basically the people and the guards MUST know who you are. so at the first time a guard see you, they need to automatically go after you.
But i still have one question.
Does your brotherhood appears from nowhere or they are following ezio secretly from a distance?
Because you can see many times in some trailers that Ezio raises his hand an the brotherhood jumps on the guards, i hope they was on the top of a rooftop waiting for my command, i don't wanna know that i raise my hand and then they appears from nowhere and assassinate the guards, if you understand me.
I just think that in this game you NEED to always be notoriety, because you are just a man with a white hood, sword, crossbow and other weapons, free-running and killing. So i think that when you pass near a guard or a group of guards, they need to automatically go after you, because they are BORGIA GUARDS so they need to know who you are. you are the arch nemesis of the BORGIAS!! so they Must to go after you at the first time they see! don't you guys agree?
I agree that being incognito all the time make the game a tad too easy. Not only that but you don't become notorious after assassinating major targets, which sorta takes the fun out of "Mysterious Death" assassinations.
Having said that i think on my initial playthough i'll play as steathfully as possible but i'll restrain myself from using BAMs because it feels like a "win" button to me.
I agree completely, its like I said in the "last person to reply wins" thread, I don't like killing heralds so that they can keep on telling the world to run and hide from me.
Thanks to SBIzokronus for the fantastic sig!
Il play how I play MGS, I go stealthy as possible until im seen, but instead of reloading and ruining the flow i fight it out and then hide
Honestly, it depends on how the brotherhood affects gameplay. I was fairly stealthy in the first one, and completely stab happy in the second. The duel hidden blades were to damn fun. I'll have a hard time letting my underlings gain experience because I tend to be a hands on type individual.