Many of the Elite 4 pokemon are in the 60s for levels.....
There are some trainers that stand out that just piss you the hell off and are really hard. Dragon guy is the worst

took me more than 5 trys to beat him. So Id say no. You can save first than go in and see what youre up against, just turn it off if youre in over your head. I much prefer Hitmonchan over any other fitghing type. His stats are high and he learns many elemental moves that are effective agaisnt his weak types excpet phys pokemon.