What I don't like about the "Fighter" Class

I know this is not going to be a popular opinion.

I've always appreciated how League tends to have fairly good trades for what champions in set roles do. ADCs, APCs (Mid Mages) and Assassins are glass cannons. They rely on execution, positioning and raw damage to kill their target before they get killed by the enemy team.

Pure tanks aren't damage dealers. Maybe they are, but it's usually slow damage over time, and you won't see them soloing a carry in equal circumstances. They operate as front liners. They soak up damage for their team, initiate fights and can be great zoning at times.

And then there's what I've heard people call the fighter class. These are champions that get the best of both worlds. They don't need to build full tank to be front liners, nor do they need to build full damage to destroy carries with a quick combo.

You can have a character of this class on over 4K HP http://i.imgur.com/5ZWp6Ul.png

Several times I've read people here say "Those aren't really tanks" and while they aren't your 5.5K HP Rammus, they aren't your 1.8K assassin either, yet... http://i.imgur.com/1uIEIJg.png

They are able to output sometimes as much damage as an assassin on single abilities.

Going back to the title of the topic: I just don't like this. To me, I fail to see how having the best of both worlds on such efficient builds is just fine. I actually don't think Lee is an unbalanced champion right now, but the numbers some of these fighters can output on just two items as AD sources just feels weird to me.

Like I said, I know this is gonna be an unpopular opinion.

Still, have a nice day and enjoy the game.