You can not compare TH versus AW /PW . these are almost different classes. The style of play is also different for them. the best one is - whom did you choose for yourself . and then everything depends on your style and ability to play for class . we cant talk who is better , because 1x1 win rate 50% all dagger classes. but what you can show in mass pvp or solo gang ?!
we can talk about damage only , and it is AW>TH>PW till 78 , and AW>PW>TH 78+ .
and about HP/CON status TH>PW>AW
this class is hard to play , not F1-F2 . so no best dagger class here . better skill = win (OFC some chanses blow rate)