Recommendations? iSpeech Dictation|Vlingo|Drive Safe.ly

I have all three, installed as a promo from RIM. They are definitely meant to be a one or the other not side by side as iSpeech and Vlingo constantly fight over the convenience button. I want to get rid of two of them, but wanted to see if anyone had recommendations of which is better?

I liked Drive Safe.ly when it worked on my Bold 9650, but since I got a new Bold 9930, it won't work any longer.

I find Vlingo is much better than DS for reading incoming messages.

Maybe I'll try Vlinglo again, I thought it was mainly for voice commands and such.