First of all, TW3 isn't an RPG. Its more of an action adventure with RPG elements. Comparing TW3 with Skyrim is unfair. In Skyrim you can live YOUR life as YOU would in Tamriel. In TW3 you only live GERALT's life.
Once you accept the fact that you cannot play anyone else than Geralt, the game actually becomes extremely good.
Ok, so the graphics are pretty bland at times, and I still haven't really dropped the whole downgrade controversy. But on the technical side of things, it's not that impressive. I mean some of the textures are just bad, and there's not even a sufficient antialiasing method available despite the use of heavy foliage.
Controls are acceptable. Its not intuitive, and it can be very frustrating just to go up a ladder. But it does its job.
The combat feels very dumbed down, but I honestly don't know how it could be done in another way. It has been evolved from earlier titles into what it is today. So it's basically a perfected mechanism from the older games.
But the strength of TW3 lies in its design. The world feels real and the people that lives there seems to have personlities. Sure, you'll hear the same voice actor a million times, but you do that in Skyrim, and many other games too.
There are countless of side quests that makes you feel for the characters, and I've often wondered how things ended up for a character. Every quest feels they are designed with compassion.
One thing where TW3 shines brighter than all the mediocre action adventure games out there (looking at you HZD), is the brilliant crafting. You could literally spend days at getting stuff for that big legendary sword or armor. And you know it's worth it. Scavenging is also a great way of making gold as gold can be very hard to come by. Most games shower you with money with no real hole to put it in, except for your pockets, or in Elite's case, bigger ships to make you get more gold to get bigger ships so you can get more money.
Everything in TW3 has a purpose. Well, except the enormous amount of NPCs wandering around with no purpose other than filling a large world.
The music is also very well made and I'm so happy to know that the composer of TW3, Marcin Przybyłowicz, also composed one of my all time favourite games The Vanishing of Ethan Carter. The music also fits the world and each zone has its own theme.
Everything TW3 tries to do, it does so in such a way that you believe it.
I didn't liked it at first, mainly because I didn't want to play as Geralt. But as soon as I accepted it, it became one of the best games I ever played.
It has raised the bars for other games, and frankly, the expectations on CP2077 are ginormous.