Easy enough - Victor/Reinz (Dana) is my favourite, but Fel-Pro is perfectly acceptable.
I do prefer cork as a material over rubber, but I'm just funny that way. Cork tends to absorb a bit of oil and swell to "finish the seal," which I like. Cork gaskets do require that they be run about 15-30 minutes a fortnight to keep them damp, but that's not a problem if you don't trailer the thing to events only every quarter or something like that...
"recon" (sic - reckon)(tm) "hihgly"(tm) "seceed"(tm)
"Outback AIDS - Alcohol-Induced Dizzy Spells"