I'm generally a POP3/IMAP sort of guy and avoid web-based email, but the convenience of a solid web mail solution with a nice interface is very attractive. That's why I joined Oddpost about 9 months ago - it has an amazing web-based interface (IE only) and decent enough IMAP/POP3 support. As good as Oddpost is, I've moved everything over to Gmail and plan to stay there. Several reasons:
- Oddpost has had some notoriously bad outages. Service has improved, but I still see more downtime than I should.
- The way Gmail handles conversation threading is groundbreaking. I liken it to gmane, though I think Gmail is even better. I subscribe to several high traffic email lists, so by managing the threading effectively Gmail lets me filter out a lot of noise. If don't care about a particular thread (like the rules arbitration for Goa and Maharaja happening on spielfrieks right now), I can delete or ignore dozens of messages at once my skipping a conversation.
- Search. It is Google after all, right?
- Tons of storage. 1GB for now, and I doubt I'll need more any time soon.
My major complaint right now (like others): lack of POP3 and IMAP support. Hopefully they'll offer a paid service with this support in the future.