Thanks for the replies. When 4.3 first came out it seemed to take the official cm a while to reach us here, so I gravitated to the more minimal custom roms. They're excellent (using Purity now), just wondered how 10.2 was doing. I'm guessing they're all pretty close to each other, unless you want lots of bells and whistles.
It'll be interesting to see how cm progresses with their new business model. I think it'll be even better for the end user, maybe at a slight cost, and I don't begrudge them wanting to make a livelihood out of their hobby.