I'm only about two hours into the first Two Worlds (and have spent about an hour in the second) and I would say they have more in common with Gothic/Risen than The Elder Scrolls, and I wouldn't say they're bad either. There is no level scaling, so you can't defeat the big bad at level one like in Oblivion (and Skyrim), you start off weak and with a limited amount of abilities and there is no hand holding character in the first hour of the game. Like Waltorious mentioned, there is a LOT more loot in Two Worlds than Oblivion (probably Oblivion and Skyrim and Morrowind combined), I've found a ton of unique loot in just two hours. There are also large packs of animals, much like Gothic instead of The Elder Scrolls series, that means a wolf pack will have four or five wolves instead of two like in Skyrim, same for a pack of boar, etc.
The melee combat is much more varied in Two Worlds than Oblivion (or Skyrim), there are combos, pressing a different directional key will cause a different attack, etc. Magic also seems more varied with the use of booster of cards, I can't say much about the spell system at the moment though as I just have two spells at the moment.
Enemies also come in a wide variety, I've fought goblin-esque characters, bandits, two different kinds of wolves, boar, black bears and a ghost and I'm sure there are many more to discover.
The world is quite beautiful on max settings, I'm in a forest-y area right now and it feels like an actual forest. There are caves scattered about and shrines scattered about that heal you or regenerate your mana. I have noticed one "scene" (a destroyed cart with enemies nearby) twice, but that then again, how many broken watchtowers with a chest at the top of the stairs are there in Skyrim?
All in all I'm getting really sucked into Two Worlds much like I was into Gothic 3. The biggest problem I have with it right now is...the horse can be a bit hard to steer at times.