Usually using an amd in my desktop for better price/performance ratio. but it really depends on budget and price/perfromance ratio at the time when i buy. Also got an intel in my laptop, sadly amd still has not that good moblie processors especially for power saving so the choice there was no real choice
For graphics its all ati for me for a lot years now. i had a geforce 3 that died just after warranty was over, then replaced it with a cheap used geforce 2 since i had nearly no money at that time and that one died also only a few months after. bought a radeon 8500 to replace it and stayed with ati since then (had a 9700, X850, HD3650 after and now a HD4850) . never had a card die anymore, never had any driver problems with the games i played so was really happy with the switch.
