Bi-Amping Which amp for highs and which for lows?


I am bi-amping my front speakers. I have a Anthem A5 180 WPC and a Anthem A2 200 WPC 8 ohms.
My question is which one should I use for the highs and which one for the lows. 
Thanks
558
Agree about bi-wiring rather than bi-amping, unless the OP is very savvy and dedicated.
what is the diference with bi-wiring?
i was goona use the A-B outs on me HK3800 to supply the juice to my individual drivers in the MT project
@canibefrank, probably better to use double runs of same cables, connected to same output of amp and separate terminals on speakers.
Bi-wiring uses one amp, bi-amping uses two or more amps.