Its probably really fender but i see a lot of ibanez guitars in youtube, also ESP .. so i guess i cant really decide
Likely Fender, since they are everywhere, and there are tons of cheap models.
I really don't know. ESP has a lot of endorsers so do Schecter and I gues Gibson too.It's hard to tell.
Hard to tell
Due to a research, Stratocaster is the mostly sold guitar around the world.