What is the best web conferencing platform? Please review.?

WebEx Meeting Centre? Microsoft Live Meeting (2007 NOT 2005)? Adobe Connect Pro? Go To My Meeting?

I need a platform that can host roughly 20 individual connections. Also, it needs to have VOIP capability and video. Application sharing, chat (text) and ease of use. Money is not really a concern, so please do not ocnsider that in your review.

I have used WebEx meeting centre for the past year or so and like it. It could be better.

I am under the gun to renew my contract with them or switch to a new, improved platform.

This is used by people with disabilities for all sorts of purposes - attending an e-workshop, e-meetings, even attending huge events. If you are a person with a disability, your feedback is especially appreciated.

Thank you!