Best tanking class for a new player?

I haven't gotten all that far with my Shadow(Assassin) yet, but Powertech is pretty straight forward. There are a few differences you may want to consider. First and foremost the resource system. Heat vs Force. Force regenerates as a constant rate, while Heat dissipates at a different rate depending on how much you have. And then there's Procs/Charges. Powertech tanking really has no procs or stacking buffs to keep track of, while Assassin has Harnessed Darkness and Dark Ward.

And if cosmetics are a factor for you you also have to consider double-bladed light saber wielding, robe wearing acrobat vs single pistol wielding, jet pack wearing flamethrower.

This kind of baffles me, you don't wanna use the easier, more efficient, faster, more intuitive method that requires less effort because you think it's too much work?

How is it more fun to put your effort into navigating your UI instead of just playing the game with no thought procces needed to use the abilities you want?

You most likley only need 5-10 keybinds of your most often used abilities and you can then click the rest of them as you normally do. This can not be too much for you to remember.