WoW was far from my first MMO, and it will not be my last. I am pretty sure I will never put so much time in to another MMO as I did with WoW.
After more than seven years of playing, the only thing I will bring over to SWTOR is my subscription as people have mentioned before. If SWTOR is only half as good as I hope, I will most likely never go back to WoW.
I SWTOR cant hold my attention, then it is very likely that I will return one day..
when I first started wow, which was a week before BC came out, I would get runs from strangers who offered, or given free bags by a person standing near a starting area, and when I hit max level I did the same thing for low level people. By the end of lich king though, all the low level toons were alts of old players, and people stopped being grateful or trying to help each other out.
I hope to return to my roots of helping random people as I level and helping new players into the game and not having to be so pessimistic of low level players being veteran players who want you to run through stuff, and know as much as you so you can't show them the ropes or neat little tricks (which is half the fun of helping new players).
How noble. I never encountered anything similiar and I've been playing WoW a lot, since the EU open beta. Nobody ever gave me free bags because they were damn expensive and having 500 gold meant you were pretty rich, epic mounts were EPIC lol. Maybe I'm a cynical bastard, but instead of wanting to simply help, I think that during those times high level characters helped out low level ones simply because they were bored or wanted to feel powerful stomping low lvl dungeons. These days everyone and their mother has gotten bored of going to lower level dungeons because they've done it so many times during their wow career.
I started my PC gaming life with wow 7 years ago, a short time before i turned 12. So no matter how much I hate wow today, I cannot deny that I wouldnt be the same gamer if I wouldnt have played it for these long 7 years. Thereby I do not really know the exact elements from my experience that I'll bring to swtor, so in my opinion the question is quite hard to answer and im not really sure that I can give a good answer to what I'll bring.
What I wont take along with me will be my emo attitude towards questing and leveling.
As well as my attitude towards the games community, WoW's just got unbearable I just hope SWTOR isn't/doesn't get as bad. As for what I'll take with me, just my experience in general filling every role in the game at some level, hopefully some of it can be applied to whatever class I decide to pickup and play.