I would say that anavar is a leaner steroid, and Turinabol will give you more mass (yet without water retention). Therefore, if you want more mass, then tbol is the better choice. If you want to lean out, then anavar is the better one.
However, what I like the most about Tbol, is that it is very similar to anavar (just more anabolic), but it is much cheaper and less faked.
Finally, I would highly recommend you to use an injectable steroid with an oral, because oral only cycle usually don't give very sustainable results.