I don't dislike LG TVs in any way! If you search my many posts, I normally recommend them along side of Sony and Samsung for LCD. What I do dislike, are the dozens of nearly identical fanboy rants containing LG's marketing jargon on the boards. I just have a sneaking suspicion LG has people posting their marketing on the board wherever possible (including non-related threads). Many of these posters clearly don't even own the product, and appear to be simply posting off a spec sheet.
That aside...
If I were purchasing a set today, I would look at LG LCDs becase the design is absolutely amazing, and the image quality is good. For the money, I strongly believe LG is a tough cookie to beat. Their feature set is solid, but doesn't really stand out ahead of any other manufacturer. In terms of absolute picture quality, you can find Sony or Samsung LCDs , and Panasonic plasmas that will outperform them, but you can bank on spending at least $500 more.
I would purchase a TV set based on 2D picture quality first, 3D second. If the set is poor in 2D, it's going to be poor in 3D. Not to mention, 3D content is fairly difficult to find right now. From my personal experience with 3D, I own an active Panasonic VT-25. I did not purchase the set for its 3D, but for the 2D image. I have seen Toshiba, and LG's Passive 3D systems, and both are good. As the poster above me said, I do not feel that one technology is leaps and bounds ahead of the other. It really is personal preference.