We usually go back with OEM. Have used several other brands in the past and, it has been my experience, with any type of off road use they all fail again within 50-70K miles.
As for the warranty, I haven't tried it with any chassis parts, but for Ford to always honor their current "claim to fame" 2yr no exceptions crap hasn't been holding up.
It's off topic, but our last denied warranty was on a focus we retailed to my aunt.
It had the part that failed installed, at a ford dealer no less, under the 5yr 60K new car warranty. Same part failed again 1yr 17K miles later and another dealer wouldn't honor the warranty.
Reason for the story is take the warranty claims with a grain of salt. IMO.