CR (Summer) - Gatorskin 700x23 for their puncture resistance. Punctured twice due to 'dagger like' pieces of flint.
CR (Winter) - Specialized Mondo 700x23c, I like the colour, red and white -
(with slime innertubes for puncture resistance) never punctured! Touch wood!
Cyclo Cross - Cyclo Cross Challenge Gripo 32 Pro 700x32c. Came with the bike.
MTB - Specialized Fast Track 26x2.00 they came with the bike.
Old MTB - Specialized Fat Boy 26x1.25. Low rolling resistance and better puncture resistance when going to and from the pub! Previous cheap 26x1.00 tyres punctured too easily (can't remember make).
Unicycle - Kenda 24x1.9 - like I can ride it more than 25 meters
- it will never wear out!
Have bought through a combination of online (ebay) and in store. Prefer in store!