So many of both I can't remember.
Right now at home I have about 12 mobos and 15 procs of various ages.

My current machine is a 3.0ghz p4 lga775. My next machine(WC mod) will probably be amd.

My TV computer is a 750 mhz athlon slot a with 768 mb pc133.
Linux box - 400 mhz k6-2 with 256 mb ram.

Doesn't really matter. Just a matter of preference.