In my own honest opinion, these are worst anime cliches ever, they're not in order of importance, I numbered them just for the heck of it, now to the list:
1)Coughing blood - all it takes is just *one* single hit anywhere from anything and the character instantly coughs up one mouthfull of blood but then is fine after that with just a bandage applied.
2)All you need is friends! - The protagonist fights one of the main villains of the show but keeps losing no matter what he does. All his "strategies" and powers that he developed and used against lesser enemies, fail miserably against this guy, every single one of them.
But does he lose? Does he give up? HELL NO!
He wins because he has the power of FRIENDSHIP, of KINDNESS and he's TRYING HARD!
3)I killed an entire army single handedly but now I'm a pacifist!!! (perferct example: Gundam Seed) - I've lived a life time of war, killed hundreds of people/I'm the only one who can pilot this mech/whatever but just because I've met someone/saw something "horrible" I'll change my ways, starting now!!! (right in the middle of this war, I mean).
4)Wait, there's, like, a battle going on? - Just because you're in the middle of a battle, with shots going all around and explosions everywhere, it doesnt mean we cant start right in the middle of it a philosophical/psycological discussion about the reasons of the war or the repercussions of the dark secret that has just being told, it's not like we're in danger here.
5)SURPRISE! OMG! I HAD NO IDEA IT WAS HIM/THAT! - everybody who's watching already got the point/figured it out of well beforehand but, no, the characters never saw it coming, mainly used by writers who have no more ideas.
6)I wanna be the best (insert anything here)! - this speaks for itself...
7)There's always someone tougher/more evil - essentially the whole DBZ plot.
8)The mysterious power - why, just the other day I managed to wipe out the enemy all by myself using this mysterious power only I possess but now I have no idea of how to use, activate it or what was it in the first place.
9)The completely innocent yet incredibily hot girl (perfect examples (out of the thousands): Aoi Sakuraba and Orihime Inoue) - Why are all this boys staring at me???
10)Draging the fight (again DBZ) - I'm just too cool to wipe you out from start so I'm going to drag this fight a whole week by staying in my weakest form.
11) Mortal Rain - Oh, no! You just passed out on the floor! It's all my fault! If I had noticed you were standing (only a few minutes) in the rain for ME, this wouldnt have happened!
Dont worry! Instead of taking you to a hospital and giving you medicine, I'll just drag you home, get you in bed and by morning you'll be fine!
And you'll wake up and bump into me or my sister causing yet another hilarious but completely unintended situation.
12) I have amnesia but I think that if I stay with you, maybe, just maybe, I can regain my memories so can I tag along?
13) Panty shots.
14) Harem anime - a nerdy guy surrounded by a bevy of beautiful babes who all fall in love with him, and end up fighting over him, even though the guy wants no part of it.
15) Slap of doom (examples: Kenshin, Yusuke, etc) - I'm the most powerfull guy in the universe but all it takes to defeat me is the slap of a girl (usually the potential love interests).
16) I hate you but truly I love you - It's true that it may seem like I hate your guts but this is all a facade for my love for you!!! You simply never seem to notice it, that's all.
17) The girl that eats enough to feed the whole of Africa but never seem to gain, you know, any weight.
18) Mysterious guys always have glasses and you'll never see their eyes.
Add any that you think or remember, I'll post more when I can.