Exclusive coded to specifically target a given console are good.
Exclusive that are only exclusives due to moneyhatting, or a designer hating a console, are bad.
Non-exclusives that are competent and enjoyable across all consoles they are on is good.
Non-exclusives that don't launch at the same time are bad.
And then there is the "each console gets its own content". I think this is bad, most of the time. There is NO reason why the PS3 and 360 couldn't BOTH have Yoda and Darth Vader in the latest Soul Calib.