Keep in mind I'm a real anime nut and don't so much watch tv.
1.
Darker than Black - Howling - My absolute favorite anime of all time! Whenever you hear the opening, you know you are some pretty epic fights and storyline! If only season 2 lived up to the first's standards...
2.
Soul Eater - Resonance - Found out about this one from a friend. The animation is very unique and the song is quite catchy itself.
3.
The Legend of the Legendary Heroes - Last Inferno - I am UBERLY obsessed with this series at the moment!
It has a unique emotion, a great tune and wonderful visuals. If you have never heard of this series also, I suggest you check it out.
4.
Naruto - Go(Fighting Dreamers) - Probably the most nostalgic choice on this list since Naruto was one of the first animes i watched religiously besides digimon. I've always loved that random cut scene with the characters randomly chasing each other.
5.
Space Dandy - Viva Namida - This opening is so colorful and playful. And unlike the first one, it doesn't have boobs flying everywhere. Plus I love the song.
@moonwolf Also love the fresh prince one as well as pokemon. Though I prefer the
Orange Islands Opening just because I grew up a little later than everyone else and was raised at the end of the Johto era, beginning of the hoenn one.