To your first point I say: meh. 5 rounds 6 rounds whatever, it won't make too much of a difference but I personally like the amount of time now. Remember if you play first to 5 wins you could be on the map for 9 rounds, first to 6 could be 11 rounds... it gets to be quite a long time on a map.
To your point of balance gear isn't an awful idea but it might over-weight cavalry players (who pay a lot for upkeep) and under-weight archers (who can make quite an impact with just a bow & arrows). I agree banner balance needs to be tweaked a bit to be more accurate and useful in balancing, but it might need to be looked at further.