If anyone has played both, please compare and give your impressions of the pros and cons of the Enhanced Edition.
Well I have played both versions of BG 1 once, and I am currently in my first BG 2 Vanilla (+ToB) playthrough. I have already pre-ordered BG 2 EE and I intend to start a new complete saga play-through from BG EE to BG 2 EE fairly soon. So, I shall offer my objective opinion on the matter, but I don't expect it would be popular here. It's like praising US foreign policy in the streets of Moscow or Tehran.
Anyways... Enhanced Edition really is an "enhancement" of what is already a very good game. It adds some features that removes the most frustrating elements of the BG 1 Vanilla experience for somebody with no experience of the AD&D 2 game system and other D&D video games. For example you can pause the game in Inventory mode, you can use tab to highlight items on the floor and other things you can interact with, you can find out the rough health status of enemies... etc. All in all Enhanced Edition makes Baldur's Gate a much more user friendly and beginner-friendly game.
Critics of Enhanced Edition say that it is paying a lot more money (compared to Vanilla here on GoG, especially when there's a sale) for the same game. You can even replicate a lot of the benefits of the enhancements I mentioned with a few mods that have been around for years.
My reply to that would be... Enhanced Edition does a bit more than just implement the popular mods already available. It does include some extra content (new NPCs and Black Pits mode) and the graphics and user-interface does feel more modern and pleasant than either BG 1 or BG 2 Vanilla. Even if you dismiss the new content as irrelevant, Enhanced Edition allows a newcomer to the franchise to enjoy the benefits of the most popular mods without having to worry about researching which mods to install, how to install them and worry about potential bugs that arise with mods clashing with each other.
So in summary, BG Vanilla is a very good game that you can get for very cheap at GoG. You can achieve the most important enhancements of Enhanced Edition if you spend some time on installing the appropriate mods, but Enhanced Edition goes a bit further than that, and you can also get it pretty cheap when Steam has a sale. For a beginner like me it was a hassle-free, convenient and easy way to 'enhance' my BG experience, which I enjoyed so much that I decided to pre-order BG 2 EE direct from Beamdog as a way of saying thanks to the Overhaul Team for the many hours of fun I derived from their work, which I felt was appropriate since I got BG EE for peanuts price from a Steam sale.