We researched this a bunch about a year ago when we bought our machines. I wanted a top-loader sans agitator, but several sales people talked me out of it, saying (confirmed by lots of reviews online of various models) that the clothes tended to twist together and warp or even rip seams.
We ended up with an LG front-loader, and we really like it, except for one thing - it recently blew the thermal fuse (issue was with the vent, not the dryer), and it was really difficult to get repaired. Unless you're incredibly mechanical and handy, you can't do even simple repairs yourself. Just to get to the fuse you have to remove the entire top and front panels. I had to call three or four different repair companies to find someone who does LGs; they are so different that most places don't service them.
To do all over again, I would probably go with a different brand like Whirlpool or Kenmore or Maytag.