Disagree completely. I cannot come up with one single thing that I preferred in TW1 over TW2... literally not one. In my non-humble opinion, TW2 was an improvement on the first game in just about every way I can think of. ›››
TW2 definitely has better packaging: better graphics, better voice overs, better 3D models, arguably better combat mechanics, more complex quest mechanics. In technical aspects TW1 beats TW2 only in UI. If this is what you like then yeah, TW2 is better, no doubt. TW1 has better substance of the game content itself: better story (I don't like the politics that much), better alchemy, better music, more Slavic feel (I'm biased here, I know), better interaction with Geralt's friends, better atmosphere (crypts are creepy, fields and lake side are beautiful, sewers feel dirtier and more claustrophobic as they should be, Kaer Morhen feels like large empty ruins, forest feels dangerous and so on). For me the better CRPG game doesn't equal better technical quality. Planescape: Torment and Baldur's Gate 2 are still better games than any Mass Effect games for me and those are over 12 years old, Fallout 1 for me is infinitely better than Fallout 3.