Neither of those look like good products.
I wouldn't classify LMF Gentle Balance as a ration balancer at all- it's fed in too large of an amount (3-8 lbs/day). I don't see any difference between this and other grains. Their "Super Supplement" formulas appear to be ration balancer products, although they have very short guaranteed analysis lists and seem to be on the low side for Vitamin A. Most other ration balancers have Vit A in the 20,000+ IU/lb range.
Renew Gold has a nice high fat content, but also is very high in fiber (while there's nothing wrong with fiber in a horse's diet, providing fiber is not the point of a ration balancer and is kind of a waste of space in there). It's also VERY low in zinc and copper, which are crucial for hoof growth.
I don't usually recommend Purina, but their Enrich 32 formula is better than either of those and most people can find Purina easily. However, if those are your only options, you might look into ordering a vitamin/mineral supplement from SmartPak or another online store.