I like doing both, for the time being anyway. Of course, there will come a time when I run out of dumbells, and this would be inevitable for most lifters I guess.
They "feel" different, and it seems to me DB bench works more chest, or works it differently, or something.
39yo, 6'2", ~220lbs.
Best lifts to date: SQ 160kg (352.7lbs), BP 112.5kg (248lbs), DL 220kg (485lbs)
Goals for 2014: SQ 180kg (396.8lbs), BP 140kg (308.6lbs)
my training log