There are some forms that are just mean, but very few that I think of as overly weak. The hardest part to playing a shifter is that not every form will naturally fit your playstyle, and you can't choose one to fit your playstyle. Instead, you must change your playstyle to fit the form you get.

As far as komodo, it may not be the greatest at tanking for ranking now but it would still be a form I would like to have paired with offense for PK so there is a balance. Before it was regen form or bust for most people, the fix did a good job of making them have drawbacks.