Knowing the source of you programing would be helpful. Are you using cable, satellite or antenna?

Consumer Reports rated 3D TVs in its March 2011 issue. Short version: Panasonic plasma, period.
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Followup: the "3D conversion" systems demonstrated at CNET are familiar. That’s old news. Just because someone has invented a process called 2D to 3D conversion doesn’t mean it actually results in real 3D. As reviews from CNET plus the other answer here both day, the results of trying to do that are pretty poor. If you understand how human eyes work together to produce a sensation of depth to the viewer, you also understand that 3D–real 3D–is *impossible* without separate, original images at the source, one for each eye.

If that’s not terribly clear, think of it like this: take a picture of the front of your house from a slight angle–you can see most of the front and most of the left side of the building. Go inside and print that photo. Now come up with a photo from the same angle, with the exact same, color, lighting, and perspective, but now showing the right side of the house. Don’t use any type of camera. Don’t even go outside. You have nothing but your single image showing the left side of the house. Obviously, you can’t do it.

But that’s exactly what you have to do to make 3D out of 2D, and that’s why doing it convincingly cannot be done.

See this article from CNET:
http://news.cnet.com/3d-tv-faq/

That being said, 2D -> 3D conversion doesn’t seem to work to well at all.

From the CNET article:

Simulated 3D: The Blu-ray via Samsung’s 2D > 3D system

Our first experience with Samsung’s 2D-to-3D conversion system, which is designed to let you watch just about any source in 3D (except the TV’s own built-in streaming services, which include Vudu), made us somewhat nauseous.

Even with material as suitable as "Avatar" on Blu-ray, 2D-to-3D on the Samsung needs a lot more work. We used the default Movie mode and default 3D settings in our test, and watched about an hour total. At times we felt that twinge in the stomach again, and after watching we felt disoriented.

Slow scenes with little camera movement were the easiest to watch, and provided the most pleasing 3D effect, but once the action increased, so did our feeling of discomfort. … we paid more attention to the rolling and pitching in our stomachs than to the screen; we had no such issues watching the 2D version (or 3D in the theater, for that matter).

At times, the 3D effect was pronounced, such as when the camera took in the computer screens at the base, or when when Jake and Naytiri examine the skeleton in Chapter 17. We also appreciated the increased depth of field in some long shots, like the hallway in Chapter 3. At other times, the 3D effect was minor or essentially nonexistent, such as when the Jake wheels through the lab to see his avatar on the tank. We also noticed that sometimes the system would pick certain objects to push unnaturally into the foreground, like the edge of a desk in Chapter 4. This inconsistency became annoying, and we found ourselves yearning for the fixed perspective of 2D fairly quickly.

We also noticed that already fake-looking blue-screen effects were made more-so by the simulated 3D effect. On memorable moment came at the 25-minute mark, when the soldier exiting the chopper and walking in the foreground appeared completely divorced from the scene behind him, like a high-tech cardboard cutout.

We also saw some crosstalk, or ghostly outlines around objects, such as around Jake’s wheelchair in Chapter 24.

All told we are impressed, as before, that the 2D-to-3D conversion system on the Samsung works at all. But if you’re expecting it to come anywhere near the comfort level and "wow" factor of true 3D, you’ll be disappointed.

- 17R3W

EDIT: I guess the short answer is neither. My advice would be go the store and try it out. Watch 5 – 10 minutes of "faked" 3D on each, and see if you care for either.

As for the size problem….I don’t think an extra 2 inches is work an extra 30 bucks. Your not going to be able to much of a different to be honest. I find the LCD to be more convient to be honest.