Ace (bell-type) or Lipstick. Ace is a frequent recommendation whenever this question comes up here.

Dave

I've never tasted the King Arthur variety, so I don't know how this measures against it, but we absolutely love Red Delicious. It is a prolific producer and the fruits are huge, very sweet and juicy. I was just about ready to throw in the towel and not grow bell peppers any more until I tried these.

Thanks for your suggestions, I will try both! Meanwhile, do yourselves the favor of planting King Arthur (still sold in some places as Fat-N-Sassy). It'll knock yer sox off!!!

Franks is one possibility for an open pollinated pepper.

Orange Bell is a very finicky orange but has fantastic flavor.

Sandhill Preservation carries both.

DarJones