As others have said it just depends what you prefer. I would personally recommend playing with the EoC combat and using revolution, it's much better than legacy without any extra effort. If you want to be more efficient you can use the threshold abilities which you have to do yourself, but this is definitely worth it given how much more damage you'll do compared to legacy mode.
If you can't cope with that, definitely go to oldschool.
I would advise against botting. The ban rate is extremely high - If you don't get banned quickly, you'll most likely get banned a month or two later once they finish analysing your bot (and detecting everyone else using it before banning you).
The general game isn't that bad. People give it much more hate than it deserves.