If you like a nice 2D style fighter then Blazblue. If you like the SF control gameplay then get SF4 (can be found brand new for around +/- $29.99 now), but if you're in no hurry then you should wait for Super SF4 this early spring 2010.
I have Blazblue & SF4, but im a SF guy for so long so it was harder getting use to learning different moves when you remember the basic hadoken moves etc. so ive been sticking with SF4 as my fighting game i always play.










