Turtle wax anything is garbage. Meguiars professional line products are great, but most of the over the counter stuff is not so good. NXT is a good wax, but it still has some cleaning properties, which I don't particularly like.
As far as wax goes, one of the easiest to take off ones I have been using on customers cars is Pinnacle Liquid Souvern (
Pinnacle Souveran Paste Carnauba Wax is Brilliant on Red- Awesome on Black! Souvern is hand poured, one container at a time, and boxed with an ). Goes on easy, comes off easy. On my own car I have been using Wolfgang Fuzion (
Wolfgang Fuzion Estate Car Wax contains real carnauba wax and paint sealant polymers to protect paint. ultimate show car wax, auto wax, paste wax, ). However, as everyone should know, wax is there pretty much to protect your paint. A proper polish is needed to achieve depth and gloss.