TBC- Two cool warcraft characters die (Illidan and Kael'Thas) also never played it
WoTLK- A warcraft legend dies (Arthas) and gameplay is just horrible, because its so darn hard
Cataclysm- Most badass dragon ever created dies (Deathwing) played it a little and doesnt seem to be very different from WotLK
MoP- Cool character named Garrosh is kicking Alliance butt and is my favorite expansion
WoD- Havent played it and will have Iron Horde, too bad i cant play as it
And i would love to see Queen Azshara, N'Zoth, Fifth old god, Argus and Sargeras expansion.
Nice points, a bit simple explained though.
My points are:
TBC:
-) quite nice expansion
-) continues the original WC3 story line
-) only drawback is that everyone who got geared-up in classic, did it literally for nothing, as the TBC items were a lot better and easier 2 get
WotLK:
-) also quite nice expansion
-) also fitting with WC3 story line
-) the gear-up problem was solved in a way more proper way than in TBC
Cataclysm:
-) somewhat boring expansion, not much new
-) there were dragons all along in WoW, so why make the new evil a dragon and not something rly exotic?
-) and all that newly added ancient Egypt stuff simply doesn't fit 2 Warcraft @ all
-) gear-up somewhat O.K., although the gap between lvl 80 & 85 is extremelly much worse than between 70 & 80
-) all in all, not a very creative or well-made expansion
MoP:
-) they should have made that expansion before the idealess Cataclysm (Pandarens already existed in WC3 TFT)
-) somewhat better than Cata, but not something to get overexcited about either
-) surprisingly, has to do somewhat more with WC3 storyline & stuff than Cata had
-) gear-up a real crap; everything again from the beginning
-) again lvling and epic items of Cata pretty useless again......
So to conclude it, the first 2 expansions where O.K., IMO. But the 2 later ones were both disastrous. I started playing it when TBC came out and so i could constantly watch the same process happening again and again: a lot of time wasted for lvling. Max-lvl riched, now again wasting hours until i get even some gear, not the very special one. Once i had somewhat better gear, the new expansion came out and made it useless! My guess is that WoW wouldn't loose so many people if Blizzard would, instead of increasing the max lvl and items each time, just add a few new items which can be received at certain dungeons and maybe some more challening world events. Just increasing the lvl and adding the same item with higher stats isn't what keeps the interest.