What in walls am I going to be happiest with...

I have a slim budget and HAVE to go with in walls.... Will I be happiest as a

Someone with very limited speaker experience... With


1) 5.1 Polk LS in wall speakers7.1 ( ring radiator tweeters, concerned about there being beamy, want decent dispersion for a large room) low budget ( or rt line lowest budget)

2) nor mail klipsch in walls, 5.1 mid budget

3) paradigm AMs line in walls 5.1 high budget...