This is somewhere on the forum but just to give you something to think about whilst we're on topic for once

:
Prelude (2.2 VTEC, not sure about 2.0) 4G and 5G use 282x23 discs, single piston caliper.
Legend and NSX use 282x28 discs, twin pot caliper.
Accord TypeR use 300x28 discs, twin pot caliper.
Carriers should be interchangeable between the first three, can't really comment on the ATR as I don't know for sure, but I doubt it.
If standard VTEC 4G/5G calipers fit on the 3G, then I think it is safe to assume that the Legend and NSX ones will. Again, can't comment on the ATR.
If you're going to upgrade your brakes, at least you want the 4G/5G setup, Legend/NSX would be better, if someone can confirm if they will fit (with or without a bit of work) then get the ATR. Unless you're chasing massive power figures or going on track then anything bigger than the ATR setup is IMO a bit excessive.
As for EBC discs, I have the EBC blanks and Red Stuff pads on the front (my 5G) and can't complain, definite improvement over OEM. Haven't touched the rears yet.

I think the 3G is probably a touch lighter than the 5G for sure cos she's a fatty so they should be more than adequate for road use.