I think you could be happy with most any of the name brands.
First decide what features you want in the 'completed AR'
As you look at the different models, check off the items included and price-out the additions that you want.
This method will help you to level set the actual price of your desired configuration.
Things I will be looking for in my next AR.
Flat-top receiver with rail, handguard with rail. H-bar, 6pos stock, etc.....