The results are in. There was really no close competition.
The best tomato I grew this year, to my surprise, is "Moonglow". I picked the seeds from the seed catalog for no reason other than it's bright, fluorescent orange color.
It's been the most reliable tomato during this cold, rainy summer. I think it's because this tomato isn't overly juicy, so it's not cracking from all the rain and rotting on the vine like my juicier varieties (Brandywine, Pineapple, Silvery Fir Tree, Mortgage Lifter). Believe it or not, it's been such a cold summer that some of my varieties still aren't ripe! (On a side note, I'm so thankful I planted such a wide variety of types. Many area gardeners are getting no tomatoes.)
Here's a picture of that beautiful, sweet Moonglow. The taste of this tomato is unbelievable! It's very low acid, so the sweetness is great.