J Lo: "but I don't get why people hate the EE?" It was mainly for techinical issues near the start of release. Most of them have been ironed out. My personal main gripe with the EE versions are the lame characters. Fortunately they are easy enough to ignore. I tell them to f--k off and I go on my merry way.
With the console releases for both BG EE versions and NWN EE, technical problems are back again. There are audio issues that should have been caught before release. BG2 has a strange buzz at the tail end of the audio. With NWN the sound ping-pongs from ear to ear, even when standing still.
"Btw, are there modded versions of the game, like Nehrim: At Fate's Edge for Oblivion, that changes the game completely and adds a new story?" Not that I'm aware of. You can check Nexusmods.
Wow, that's odd. After more than 30h of playthrough, I can strongly affirm some of my favorite characters are from the EE lol. I found that Baeloth dude pretty exquisite and funny, and Rasaad is just a cool guy and a great add to the team! Meanwhile, I find Imoen to be so annoying lol, I hate that I can't kick her out of the party simply because I need her thief skills so hard. Personally I can't understand why people hate Neera and not she. I also had a beef with Jaheira at first but I started to like her and now I won't let she leave the team.
Edit: I'm sorry, I could swear Baeloth was part of the EE new cast. Comes up it's only Neera, Rasaad and Dorn. Well, I've liked the two first ones and didn't had the chance to get Dorn in the party. It's funny because Jaheira didn't allow him in yet she doesn't oppose when you recruit Baeloth.