Or what is better than everyone's opinion is just trust your eyes. Go to a Best Buy, Sears, or whatever. Wal-Mart or Sam's Club will probably just look at you crazy...
Ask them to see 2 TVs with the same settings hooked up to 2 blu-ray players. Hook one up with a Monster and one with their store brand. If you can't see a difference, go with the cheap store brand or x-brand online. Best Buy will probably be the most accommodating cause they seem to have cables everywhere. I guess it depends on the attitude of the person you ask haha