Dry jelq, because:
1. I’m uncircumcised and it just works better for me. The skin itself seems to take the place of lube.
2. I have a major problem with accidentally getting full erections while jelqing, and the feeling of lotion obviously doesn’t help that.
3. Being able to have one hand free of my dick and both of my hands free of messy lube allows me to read or browse while jelqing, which distracts me from getting aroused and keeps me from getting bored (I don’t have TV).
4. I always seem to make a huge mess with lube and the times that I’ve tried wet jelqing have seemed not worth it in the end with all of the clean-up I have to do.