The correct answer here is to go into a big electronic superstore, take a BD with you with good dynamic range (I use Independence Day), and try a few TVs out. Don't leave them set on the horrible high contrast, put them on their natural or movie modes, and see what you think for yourself.
Cheaper Sammys aren't a patch on their more expensive cousins, however they are generally my brand of choice. Don't know if it'll be in budget, but don't go any lower than the 7K series. 8K is where you notice the real differences. If you do buy a Samsung, then bear in mind that universally their internal speakers are completely dire, so I personally would look elsewhere if you don't have a separate speaker system.
Some prefer plasma, some prefer LCD, some OLED. Use your own eyes and trust your instincts, and if a cheap no-name TV looks better then buy that one: No point spending money you don't have to!