Sales wise the most obvious choice is Gears of War with the previous two games outselling both the uncharteds, but you never know as the popularity Uncharted has grown by the reviews and word of mouth & its legs you never know
(but i say gears of war will sell more)
Mp since we know nothing about uncharted 3 its hard to say but as that comment they made about trying to be the best mp experience its clear they will be putting effort into it i loved Uncharted 2 mp
(im gonna say uc3 mp will be better then gears of wars but im only guessing obviously)
Review wise Uncharted 3 wont beat Uncharted 2 reviews even if it is a better game as it will suffer the same fate as kz3 and lbp2 they might be better but get worst reviews :S but as Gears of war since its the last in the series i think it will get hiighher reviews but also probably deserved scores
(gears of war 3 will have better review scores)
my preference however is uc3 even tho i Gears of war will have higher sales & will probably get higher reviews, i love the uncharted franchise its my favourite game!
conclusion = both are obviously great. (but then again both could Flop)
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