If your daughter's feet have stopped growing, I'd try the Edmontons. I wear them and love them. I had very little break in time once they'd been heat molded, despite them being very tough boots. I tried on the Richmonds (didn't skate in them) and couldn't really notice the difference fit wise and in the feel.
But I would think that from a financial point of view you should be trying to get slightly more than 8 months out of a pair of boots especially if she's starting to work on triples.