Damn, wrote long post and lost it. will re-do.
OK just tried banana. Upon opening, wasn't too excited - smell was very sweet and a bit odd.
Mixed a scoop with water, tasted great!! Not overpowering, not overly sweet, a very mild and smooth banana taste. I was worried it would taste really over the top, like the banana lollies, but it doesn't it is really good.
mixes easily too, like the coffee one.
only bad thing is the stupid snap lock bag thing took me about 2 minutes to close properly - pain in the arse. I might just transfer it to a Tupperware container though and problem solved.
In summary - would recommend this flavour of WPI. cheers.