I find myself overloaded with awesome and am having difficulties deciding what I would like to see and do first.
I always wanted to play a goblin, so of course I am looking forward to that, it is likely what I would look into first if I found myself in beta, leaving the fresh high level content there to be explored when the game goes live on one of my many level 80s
But when Cataclysm was announced and I found out for sure that you could play a worgen I was torn, I could finally be a goblin, but being a worgen was maybe even more awesome than being a goblin, what really sealed it for me though was when I found out recently you got your very own tophap as a quest reward, and a werewolf in a tophat is just far too cool to pass up, again may save this for when it goes live.
Appart from this I am of course looking forward to re-exploring the world and looking at the massive changes that have taken place, and trying out the new vision for the low level leveling experiance. Having recently completed loremaster on one of my characters the difference in approach to questing with each version of the game was clearly visable, whilst the old world quests were fun once upon a time and the storylines behind them are still very good the way they were executed now feels pretty annoying compared to how things were done with the WOTLK quests and even the BC ones.
Of course I have no idea what a beta test is like, if you are just given free reign on what you would like to try or if there are directions on what requires more testing since I have never been in one, nor do I know anyone that has ever managed to get in to answer such questions for me. But every time a beta is announced for a WoW expansion I always try to figure out what I would like to try out if it is a tryout whatever you like style test.
I have come to the conclusion that since things sometimes get boring the more you do them it may be better to do the thing I am least likely to want to do right after installing the expansion, it is most likely that I will take my character most resembling my main to one of the new starting zones and go "wow this is cool" get some profession training and start questing in the new zone, after doing that for a bit I will likely want to go get my top-hatted worgen organised.
So beta plan is: roll Goblin and do things, problem is male or female goblin. I did prefer the female sillys and flirts to the male goblin ones so maybe I should roll a female goblin and flirt with the quest givers so I can hear them more, and would probably roll as a warrior to maybe ease into the changes I face on my lvl 80 warrior a bit .
Also something I just remembered reading on a blue tracker was that they are testing Direct X 11 in the beta, I think it might be good to see what if any difference that would make having it turned off or on now that I have a video card with the capabilities to run that version of direct X.
Anyway best of luck to everyone, hope whoever the lucky winners of this little contest are enjoy their time in the beta test and somehow help Blizzard to make the Cataclysm Expansion awesome for everyone else.