Zardnaar
Legend
I know people complain about current management at WotC (sometimes with justification, sometimes not) but I think it was pretty obvious that 4E was shoved out the door far too quickly. It had some good ideas, but it was obvious that the people working on it simply weren't given the time they needed. Still not sure it would have been the right direction for me, but you can't please everyone. At the same time I will always wonder what could have been if it had been given more time for review and development.
Ah well, water under the bridge and all that. I'm sure most people who have done development on new products will always have that project that they weren't given enough time to get it right at one point or another.
4E whiff for me buy I liked Star Wars Saga. Wonder if a more 3.75 leaning towards that version more would have gone.