Last year was so cool I had lettuce and other cool-season crops into the middle of August. The tomatoes did not fare so well, so I will have to try again and get back with you on favorites. I got a lot of new seeds as well from various trades and swaps. What grew for me the very best was OSU Blue, a new tomato from Oregon State University. They were producing right up until the hard freeze on Nov 20th. their floavor was not that special, but their vigor made up for it, as the others just seemed to stall out.
I guess I will be looking for cold-tolerant, chortseason as well as heat tolerance. What would you recommend?