The only blobs that are semi issues are early blobs vs USF and mid game blobs vs OKW. At all other stages and all other armies blob counters are readily available-use them.
What do your exactly mean? That usf and okw have troulbe countering blobs and other factions have effective counters? I would agree that other factions have more options for countering blobs but acctually they simply have much more viable tactics and even pocket strategies than USF/OKW IN GENERAL. U can try to use all blob counters suggested in this thread (team weapons, anti-inf vehicles etc. with other factions, but OKW/USF matchup just too ofter turns into who has the bigger meaner blob for my taste... because outblobing each other with these factions is just too easy/attractive way to play this matchup.