I need your help when it comes to picking a class in wotlk

Hi there people,

After trying out all the classes ingame, I decided to roll (for pvp) either a destruction warlock or an elemental shaman:

I like both enhancement/spellhancement and affliction in pve (although enhancement definitely felt quite a bit more fun to me), so I could see myself playing both honestly.

In pvp, I loved the gameplay of both destruction and elemental from what I saw. The first is better in 1v1, for cc, and has a lot of burst, but the second one is a monster burster in group pvp: destro had a very respectable burst, more survivability and outplay potential from what I could see, but elemental felt like an absolute monsters in terms of group dmg. Tldr: they both felt great.

I plan on maining and playing only one class in wotlk classic, as I won't have the time (nor the will) for an alt, so I thought I would ask here:

For an average player, which of the two would suit me more? I'm not a super competitive player, nor will I be one, I just want to have fun.

Thank you guys a lot !

NB: I'm more excited about shaman so far, but ONLY because I love enhancement more than aflfliction in pve, so as far as pvp goes, it's not helping much I'm afraid xD

It's really simple.
If you're willing to support a group of players a bit you go shaman.
If you're just a selfcentered dps player who doesn't care about any other then himsrlf and who doesn't want to be bother with such a thing you go warlock.
Both mentioned pve specs are optional for raiding btw so meh.