"TIG best looking? depends who you talk to."

As usual the OP was vague enough that it lead to talk about TIG vs brazing, on that basis it is personal preference. But TIG makes far and away the nicest welds, if that is the issue.


"and im not sure why you think TIG takes the most time,"

It can be run reasonably fast, but that is not it's purpose. That is what we have MIG for, (or GMAW if you want to ensure nobody finds the thread in a search )


"or that you have better heat control."

"Better" is maybe not the best way of characterizing it it if: a) one is being picky, and b) one is talking about general welding vs. bikes. So what matters is that heat is correct, and that can be achieved with all the major methods and even some horrendous kludges. TIG's advantage is that heat is separately controllable, on the fly, without reference to the feed rate of the filler, a feature it shares with gas welding. Also, far more setting options are available on the more sophisticated sets. Probably some of those setting could be developed for other processes except that is the TIG advantage. Of course for bikes the heat control in TIG is the better option, unless one is using robots, etc...