We had a Sea Doo and were very happy with it. Gave us no issues and could tow two knee boarding easily. We bought a 3 seater just to give a bit more room for the spotter who has to face backwards and it was a good choice as it also allowed us to take to small kids out for a little 'stroll'.
As for features, loved the reverse feature, the lanyard that attached to you so kills the engine when you fall off, and the reliability - never had an issue. We only sold it in the end due to lack of use, but one of my employees bought it from me and still owns it and says it is still as good as new 14 years later.
To be honest I never checked out the other brands before buying the Sea Doo.