I usually get 24mg nic, 75/25 pg/vg. I think more vg will give you more vapor and throat hit.  When I first started I ordered about 20 different juices and tried everything to see what I'd like.  The key is to find a vendor that will let you buy sample sizes at a cheap price.  There are so many ejuice vendors you will always find something new at a good price.  I only order from the US for fast/cheap shipping mainly. I swear you will end up saving money in the end. But yea, I went a little crazy and spent a lot in the beginning. It was the best investment I ever made!   
  
I haven't tried it but many people swear by Bobas bounty.  I like cookie and baked goods, fruits always seem great, but I moved away from tobacco flavors.  The thought of tasting burnt leaves just doesn't appeal to me anymore.