15X8 or 16X8?

Looking at new tires and wheels after I get an Icon Stage 1 installed. These may not be my final options, but what are the pros/cons of different wheel sizes?

I can get five 15X8 wheels and tires for $1625:
Procomp 7069 rims @ $98/each
BFG TAKO 33X12.5X8 @ $227/each

Or I can get five 16X8 wheels and tires for $1940:
Procom 7069 rims @ $109/each
BFG TAKO 285/75/R16 @ $279/each

The 15's are cheap enough to make me go with them, I like the small rim/big tire look. What other factors are involved though?

 

I don't think 15 inch rims will fit over the brakes.

 

15" wheels won't fit the 2nd gen brakes. You can get 285/75/16 tires that perform better than the BFG's for cheaper.

 

15 wont fit 2nd gen i tried 1.26 spacers and grinding caliper still wont work