Spent a few weeks messing around with different characters to see which I enjoy - Unholy DK is just amazingly fun, and I found it very easy to learn and play (I'm a noob)

try mage

super easy , #1 in dmg , unkillable and no skill required

Lol definitely not #1 anymore and they're squishy as hell this patch.

The rotation for fire mage seems really hard I am a noob so I like simplistic classes (although bm hunter is too simple for my liking)

isnt every class pretty easy now?

Nah some definitely harder than others.. Spec such as BM hunter and UH death knight are really easy and simple, where as some of the harder specs would be IMO, all the rogue specs, feral druid, maybe fire mage

"ok"

lvled 6 class to 100 since 7.0 and my fav is hunter .

i enjoy BM hunter alot because it has infinite mobility , nice for 5 man and pvp . Tried MM too sustainable damage is beter and doesnt rely on CD like BM but you have to stand stil alot more and you loose alot of dps on high mobility fight .

Every class can be easy. It all depends on what you chose in your talent tree. (imo)

really? you have to be trolling? you actually enjoy BM, i found BM to be the most Boring class ever. they literally only have 3 buttons in there Rotation