Dragons frequently use fire...
...
My Nord encountered at least a dozen frost using enemies by level 10.
These for sure.
I've played a Nord as both of my characters - the only other choice would've been a Dunmer for the Fire Resistance. I complement my Nord's Frost resistance with Fire and Shock Resistance on footwear...and then I OP myself with a ring and necklace with Frost, FIre, Shock, and Magic Resistance.

The Argonian's disease resistance and waterbreathing are pretty useful, too. Bosmer poison resistance sounds good, but I've never been troubled much by poison.

And, as mentioned, I could see the Breton's magic resistance as pretty useful.
Of course, these are actually attributes - I wish the abilities would have cooldowns of less than 24 hours.
