Stock style brake upgrade questions?

I've decided to use stock style brakes so let's exclude the 2WD late model Blazer upgrades, the B and F body spindle swaps, etc...

I picked up an aluminium B body master cylinder, now I'm looking at caliper options. I've come across two interesting choices at about $100 per side:

wilwood aluminium stock bore GM metric caliper

and

wilwood cast iron 2.75" oversized bore GM metric caliper.

Yes, I can have the dual piston D154 wilwood calipers for about $400 for the front kit, but I don't need something that flashy.

So what would you rather have, a state of the art triple bridge design lightweight caliper? or... more piston area to push against without the benefit of reducing unsprung weight?

Normally brake choice for builds is a no brainer for me, but I'm stuck in this case - I wanna reduce unsprung weight to offset the weight of the wider tires, but I also like the idea of having a larger piston in a stock style caliper.

The car is an occasional street driver. It has never nor will it ever see track duty of any kind. I just want it to be a competent driver on a reasonable budget. So far, I have DJM drop spindles, tall upper and lower ball joints, eibach springs, and KYB shocks, rolling on 16 inch T/A rims.

Oh god for a second I doubted myself so I had to look it up. http://www.formula1-dictionary.net/unsprung_weight.html
Well, blazer swap is a no-go for sure. I'm using djm drop spindles so if I ever go bigger it will be a corvette setup with kore3 or flynbye or whatever. Yes, the rear wheel cylinders are on my list as well as long as I use the 10 bolt rear end. I wonder what the formulas say would be the increase in clamping pressure from a 2.4 inch bore vs. 2.75 inch.

well, think it's answered - the weight savings is only 0.9 lbs and the clamping pressure of the big bore caliper is up 34% over a stock size bore. think i'll do the cast iron oversize calipers from wilwood. thanks for the input all!!