I read a lot of forums and I don't feel that I have ever really seen this. I of course am a sent. I started combat and felt I was pretty successful in pve, but pvp not so much. I feel the problem with combat is the length of the chain. You have to string 5 or 6 moves to max damage. Watchman = force leap>overload sabre>leg strike or cauterize> cauterize if not yet, or precision slash (the better focus builder, if not the right name.)> spam favorites.... The difference being that unfortunately there is a huge amount of cc and knockback against you. If i get the first 3 off with watchman I am gonna keep up in damage. With combat, break the chain = start over... You can say that I just didn't understand combat, and that is fine, all i know is i am a lot more effective in pvp now.
I have heard that focus is a great damage stat grinderfe, but I have also heard it is difficult as a finisher. Can't say myself, haven't tried it.
I miss a few things from combat, extra roots and speed, but I feel I am better at watchman. Is it easier, I don't feel so, but it does have a longer chain, with a better chance for interrupt. Combat however will throw the large damage if you can pull it off.