agressive openings

Can you tell me which are the most agressive and defensive chess openings for both white and black?And explain why?

For black

The most aggressive line is probably the Traxler Counterattack, although the dragon, meran and botvinnick Variations can be quite aggressive as well.

The most defensive opening is either the slav, the stonewall, or the Berlin Defence.

For White

The most aggressive line is probably the Belgrade gambit, although the Halloween Gambit could make a case as well.  The Frankenstein-Dracula variation could make a case as well.

The most defensive opening is probably the Hammershlag, although the hippo and the mieses opening can make case as well.

The Benko for Black is quite aggressive too

There are some variations in the slav that can get ridiculously tactical, Conquiscador

That is why I included those in the aggressive openings for black.  It is a matter of taste.

Latvian Gambit, but expect to be at a big disadvantage if white knows his stuff.

Danish Gambit, anyone below 1400 will except all of the pawns and then lose horribly. 

The King's Indian Defense against d4, Sicilian dragon against e4 as black.

As white, I might say something like the King's Gambit or the King's Indian Attack.

Those are all aggressive openings, but I do not belive that they are the most aggressive.

I always wondered, is it possible to accept both pawns and consolidate one or both with correct play? 5...d6 actually scores alot better than 5...d5 (just saying).

White: 1. Nf3 = Nimzovich Attack

Black: 1...Nc6 = Nimzovich Defence

The most aggressive opening is surely 1. e4 e5 2. Qh5

I am trying to say that the fact that something is aggressive doesn't necessarily mean that it is dangerous.

The stonewall dutch is defensive.

You're a bit stronger than 1400. You probably understand that some material must be returned at some point.

I doubt it. Black does gain full equality in the mainline I believe. I've never really looked into the Danish and if I faced it OTB I'd simply decline the second pawn.

The second or the third ? You can take on c3 and stay a pawn up, but if you take on b2 that can be unpleasant.

I wouldn't take the c3 pawn.

First of all I want to thank you all for posting on my topic.Second, I am a new and unexperienced player and I want to know an aggressive and a defensive  way to start my games.What do you suggest?I am telling you that because most of the openings that you posted I think are not for my level.

Well, against e4 there's always the Scandinavian Defence, but I know so many people who play that and only that and their playing strength stays the same for years. There's absolutely nothing wrong with putting your bishop on g7 in the Sicilian Dragon and then pushing your pawn minority on the queenside, even if you are very new to chess. It will teach you a lot. Also, creating a pawn chain in the centre and learning to undermine it (King's Indian Defence and the French) is a useful skill. Playing with an isolated pawn (Tarrasch Defence), holding the centre with possible hanging pawns (QGD), all that will improve your chess. Meran Slav, Leningrad Dutch, Grunfeld or Alekhine can get very tactical, which is exactly what you need. If I were you, I'd first answer e4 with e5, Nf3 with Nc6, learn how to survive all white's quick attacks, increase my tactical skills as a result, and only then start playing semi-open games. Try as many openings as possible, play a lot, lose a lot and do not be afraid to experiment.

You do not have to learn tons of variations. On the contrary, look at a couple of complete annotated games in the variation which interests you and try to implement those ideas in your own games. Try to understand why the moves were played, but don't memorize them. There are no "easy" openings, there are just boring ones - the sooner you start avoiding them, the more you will enjoy playing chess.