What front brake setup to go with? Options

[Coomer]

I'm unsure of what brake setup to go with for the front of my car. I'm putting rear discs from a fifth gen. ST184 in the rear, but for the front I have these options:

1. ST185 Single Piston Calipers and 10.9" Rotors - Bigger rotors, but a single piston caliper.

2. ST165 Dual Piston Calipers and 10.0" Rotors - Smaller rotors, but a dual piston caliper.

I've read both ways on this, so I'm not sure which would provide better braking performance...what do you brake gurus suggest?

Oh, by the way, both are pretty much free to me at this point. I'm getting some ST185 single piston calipers and pads and rotors in exchange for some spare parts, and I have stock AT200 rotors which work for the ST165 calipers, and ST165 calipers and pads.

[Consynx]

is that the only options?
i am thinking there HAS to be more for you the celica, look for a heavy lexus with 5X100 in the 90s
i just went to ls400 brakes, but that's 5X114
out of those i'd WANT to say the dual pistons, but it's almost a full inch less rotor diameter, and older...i'd want to guess toyota upgraded when designing new...lol, so ST185?