Well, I like it that he does not round out all the edges - Tafelmusik always sounded too polished for my taste. But if that's what you're looking for ... Hogwood was criticized for not rehearsing properly enough by his double bass player of the time, Barry Guy. But with a project of these dimensions one has to compromise, I'm afraid.
Haven't yet heard the Freiburger's version - although they always delivered fine performances when I heard them, live or on record. I have Pinnock's version of the Tageszeiten Symphonies which is nice, but I haven't listened to it for a long time.
That's exactly how many Hogwood recordings sound to me, under-rehearsed with rough edges - too much so for my ears. Tafelmusik may be a tad too polished (I agree with you there), but I prefer their approach to Hogwood's.