Hey there Croatia, this is my thoughts on the matter.
When i see questions like this, I am quite reluctant to answer. I eventually spoke up on another thread someone had posted here a few days ago, as I thought the only negative comment made about GW2 had no context and in my little world no sense. So I asked for justification, which has still not been responded to by either of the posters.
Please take this coming from an obvious fanboy of GW2. I am not going to pretend I am something else, so take my comments with a pinch of salt or the wisdom they may hold. What I have realised is that some people prefer certain types of MMO's, and no matter how good another one is in your view, those people for whatever reason are just not going to like it. I played GW1 for over 6 years, and then while waiting for GW2 to arrive, thought I would try WoW when Cataclysm came out. I struggled for about a month to get into it, and this was coming from someone playing GW1 with far fewer features when compared to WoW. Though for me there was something about GW1's depth and gameplay that made me feel WoW was superficial.
So i really would love to tell you GW2 is better, but as i don't know you or your gaming likes/dislikes, I would prefer to suggest somehow you try it out. Having said that, I make two observations:
Dynamic events in GW2 are scripted. Though, so is all game AI. So as much as we can say they are dynamic and are supposed to occur like real world random events, they are obviously scripted. Also, these random events can be seen similar to normal quests like other MMORPG's, though as one gets to higher level areas, they do have chains that allow them to make a difference to the world around you. This is waaaay superior to any simple quest system. Give me this over WoW any day.
Second, the down scaling of your character to match an area is nice. There are things in place to make sure your higher level upgrades do make a diffference, but you don't get to a point where low level stuff is no contest. This makes it much nicer to redo lower level content. That is IMHO.
So yeah, there one can go into the usual stuff why GW2 is better, but I am hesitant to say that is what makes it a better game for you. It is the ignorant fool that says either of the games are crap.