Disease resistant medium bell pepper

I had a blight of some kind run through my plot this year and destroyed my crop of tomatoes and peppers. I plan to use an older plot for the garden next year and I would like a suggestion for a good medium sized bell that is disease resistant, even some suggestions for productive spicy peppers would be good. Thoughts?

Rotate crops!  Maybe increase plant spacing for better air flow.  I would trim off lower leaf stalks on tomatoes once they got 'big enough' to reduce splashes from rain.