Your expectations about the songs compared to how they are

Personally ... I thought Gallows and slayers songs were going to be the most fun...

but it turned out slayer is so hard its not fun ....

and that In the belly of a shark is just hard enough to a point where you beat it every time... but you don't have fun playing it because you mess it up alot

I also thought the In flames song would be fun... again I was wrong lol... Im pretty sure Im doing that song right when I try it but I basically fail at a very low % every time unless I play it on medium

The songs that I actually have the most fun with are:
Monsters
Hellicopter
Reptillia
Don't hold back
Can't be saved
Suck my kiss
Miss murder
When you were young

I also thought "Minus celsius" and "Prayer of the refugee" would be extremely fun... and I do enjoy playing those 2 songs but like Gallows they have their little bits that mess you up enough to not enjoy it as much
All the mildy difficult songs are really the fun ones for me
How bout you people?

The killswitch engage song is fun but less fun than I expected .... little on the hard side

Dragonforce is MORE fun than I expected .... I can't get past the intro on hard or expert but... I play it in practice mode and on quick play on medium mode... and its really fun on all 3 difficulties