I have been using Gmail for almost 6 years now and for me it is great. The ability to have almost instant access to all my communications form almost anywhere is just so useful.
So why do I want to move? Well I don’t, and I am not planning to, but I do want a backup in place just in case Gmail becomes unavailable to me for whatever reason. More recently I have forwarded all my incoming email to Yahoo Mail as the backup, but unfortunately I have had to have Yahoo re-activated my mail again because of “suspicious activity” on the account. This takes time to sort it out I would hesitate moving to Yahoo Mail should I need to because of it.
So, what service do you think is best? Answers of a postcard, as comments here, on Twitter, or even just email me. :-)