I thought the bridge scene was of a good length.
A's was a way more balanced series than either season since it basically took all that was good about the first and pretty much refined it to a better product.
StrikerS... well Nanoha has always been a character-based show, and thus the massive cast just diluted everything. It stumbled around but they started to get it in the end, even if the plot was really stupid. I could enjoy it, but on a much more shallow level. I mean, it does have adult Fate.