Brains v.s. Brawn?

I am engaged to a sweet, dependable, trustworthy guy. The problem is, he is rather lacking in intelligence, creativity and depth. I have been with a man who suited me intellectually, who could pour out his soul in letters worthy of publication. He was near genius, and I can't help but wonder if I'll ever be complete without that level of communication (I wasn't physically attracted to him as much as my fiance, and he didn't want a family). I guess my question is: which is more important, a deep connection or practicality? Should I be able to satisfy my hunger for poetic exchanges on my own (through writing, etc), or should I expect it from my lover?