Wild Arms
I love the little unique things like getting Fast Draw hints and Arms in different places rather than just getting skills in level up or through some AP system. The tools also make puzzle solving and finding treasure fun. There are also some unique items like the Secret Signs and Crest Graphs that you don't see in other RPGs.

Witcher 3
I love the detail given to some of the side quests. They feel like main quests and have some originality to them rather than 'Collect X of Y' or 'kill this monster'. There are the Witcher contracts that are more routine but even those try to have some backstory to each of them (even if they end up usually being 'follow tracks to kill the monster'). I also appreciate the unexpected ways your decisions affect later outcomes. I did not expect some of my choices to do that!

Also, I love Gwent. The NPCs suck so bad at it though. I wish there was a cell phone version.