Azenis vs g-force KD

[Forker72@cs.com]

The car is an '89 325is competing in STX using 15-inch 
wheels.  Falken Azenis are only available in a 205/50R15,
whereas the BFG KD is available in a 225/50R15.

Everything else held constant, and not considering cost
(admittedly a big difference), does anyone have any insight
as to which tire will perform better? 

Thanks in advance!

Garrick Forkenbrock
'89 325is
STX 72