1. Hayate the Combat Butler - Hayate Ayasaki has amazing skills from cooking, to being able to ride a bike faster than a car, unfortuantly he is also incredibly unlucky, lets just say that his parents use him to pay off a very large debt to the yakuza. Through a string of events he ends up as a butler, which basically requires being a super hero, and lots of funny events. It is one of the funiest series I have seen, it may have some things which are rather sad, but is mixed up with satire, and breaking the fourth wall. The sheer amount of parodies of other anime makes it worth it.
2. Kanon 2006 - Yuuichi moves in with his aunt and cousin who live in da town he has not been to in years, and that for some reason he does not remember, and not everything is as it seems.. One of my first romance anime, and still one of my favorite, it is both very emotional, and and funny. There are a few others similarly done from Key, but Kanon is still my favorite. One of the things I love is the main character who not only helps and charms his the girls, but also picks on them for his own joy.
3. Fairy Tail - My favorite long running shounen fighting series, I have seen shows like Naruto and Bleach, and both of them run into huge anoying fillers, and staring at a person in slow motion as they have extensive inner monologues and flash backs of flashbacks. Fairy Tail has rarely if ever really fallen into it, unlike others the actual main character is more of the common sense character instead of the fighter. Some of the girls the series are also pretty tough.
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Through dream I travel, at lantern's call
To consume the flames of a kingdom's fall