From what I saw at their sites they all have some good equipment. I’m not familiar with these companies, so the best thing for you to do is to go and try some of their treadmills, elliptical trainers or bikes and see which one works best for you. Check their ratings and also the type of warranties they provide. Price can play a role if you are trying to save money (or not). The service is another factor you need to consider. You don’t want to buy an equipment form a company that has poor service and takes long time for their repair team to come and repair any breakdowns or have bad customer service. I hope this helps.