What's the best artificial sweetener?

[Free4Life11]

I just bought some Pure Via today and will post a review after I've used it. It was a little pricey, at 40 packs for $3.49. It was located right next to Truvia.

http://www.purevia.com/

 

[bicker]

We had Purevia set up at work about a month ago. I found that it was, how can I say? underpowered. I needed one and a half packets to do what I could do with one packet of most anything else. No aftertaste though.