Finding the right juices really is the 64 million squids question. I found that one just has to try 'em out one by one, until you find your perfect flavours. Heisenberg was one of the first i tried, that wasn't a tobbaco flavour (i started with these first off)...and erm.....well...the smell of it nearly knocked me bandit....but the taste of it was like..well..it made me do this....!
Everybody is different!
I reckon i wasted far more at first than i liked, which wasn't cheap, & gave some away recently, but now i've settled on a few flavourites & try a few new ones here and there. It'll take a wee while to build up a stash of favourites...just keeping experimenting mate! Good luck!