Re: In your experience or opinion
There's alot on the market these days, and they all have good and bad points.
Personally, I like Halo for their cans, and Lightolier for their selection of trims. They are not compatible of course. Since I hate the Lightolier cans, my personal choice is to use Halo all around.
In my area, Lightolier is the most common, with Halo a distant second. Therefore, I often have to use LOL to match the existing stuff.