Unlimited budget I'd go for a Stumps Prince.
Failing an unlimited budget........
My small Cobb Cooker, perfect size for just the Wife and I. Will easily cook/smoke a whole meal for 2 and uses only about 12 briquettes to do so. It takes only 10 minutes to fire up and come up to temp.
For any more than two people I'd pick my MES but upgraded to the 40 inch cause the 30 is a tad too small for a whole rack of ribs.
PS........If ronp replies with anything but a 40" MES with window.
I'm traveling down to Gnu Mexico and drowning him in a Vat of Yoshidas.