Myself I always played Crane in tournaments. But I enjoyed L5R so much in my day that still meant I had 4-5 other decks with me at a time so on causal play nights I had other decks to play for fun. Sometimes it might be a 2nd Crane deck thrown in there. But I agree you learn more from playing other clans that reading about them or playing against them. Maybe I'd build a top deck and hand it to a friend and say, "please play this versus my Crane" to see how it does.
I think what set L5R apart from Magic in its early days was that you could identify with a faction. No one ever said "Go Red!" in Magic.