As far as an intra-workout, I have used Compete ever since it was released -- I love it. It has a very minimal amount, though (I'm just talking about what I use during my lifting and basketball sessions -- 1 scoop paired with 5g taurine).
As far as just pure BCAAs, I've enjoyed Modern BCAA, RecoverPro, the old Xtend, and plenty of others. I like the profile of Amino IV, but there are some other products that have flavors I prefer.
I just got a few samples of the BIP Best BCAA and I have to say, the flavoring there is phenomenal. It's actually what I've been looking for in terms of a product I can mix up and sip on in the evening when I want something more than water, but don't want to snack, etc.
Lots of good ones out there, though.