Summary: It's very similar to the other Baldur's Gate games, but, it doesn't have the intricate plots like the second game. It's extremely hard and easy to get lost, so, don't think you'll show up with a tenth level Paladin and just slaughter everything in sight.
Summary: One of the weakest IE games. Very light on story while heavy on combat. Story is rather generic. Lacks the large world of the BG games opting instead for smaller areas with multiple levels (ie Towers, Dungeons). The story in the Heart of Winter expansion is much much better though.
Summary: Icewind Dale I is a tad buggy, esp. at the end, though there are certain areas of the game that are EXTREMELY beautiful, and quite imaginative. It is very wise to use bards, druids, etc. in your party, as well as plenty of fighters. The storyline is a bit weak though.
Summary: Icewind Dale and Icewind Dale II are wonderful games, infinitely playable. Heart of Winter continues the main Icewind Dale story with its own epic extension. The reason for the star loss is that multiplayer is practically impossible on machines newer than Microsoft XP, even in compatibility mode.
Summary: This game uses the same engine as Baldur's gate I and II. The main differences being that you can create all of your own party instead of just one main character. The reason for four stars is that Baldur's gate is more engaging and has a better story.