a must watch is ->

Yup

then ouran then Hetalia, which you could probably watch it a day considering the eps are like 5 mins each

Watch it!! XD I love Durarara, its one of my favorite anime

Trust me. You will be so in love with this show that you'll watch the entire series in a non stop marathon...'tis what I did XD

It is hilarious! But I must note, it is actually really good in english dub.

I say Ouran , Hetalia ands if haven't seen fullmetal alchemist , fullmetal alchemist : brotherhood and inuyasha you should watch them next

watch host club it is an `incontournable`

Watch all these......its good

I think that depends on certain points,but in my opinion I think you could try Angel Beats next,I thought it was a really good anime,I mean it was on the sad side at times and especially some of the back stories of the characters..especially one in particular..but at times it can be extremely funny (but that actually would be based on opinion), especially when it comes to the instant replay of certain parts..so yeah but also Ouran is a great anime as well,it's so funny..and the characters really fun too!..but anyway my opinion Angel Beats-but really the choice is yours!