Since I myself am doing a little bit of research on this for the not so lovely Lethe, I thought I'd post my findings here. There seem to be a lot of massive wolves on this site lately, and I figured it would be good to find what the average heights for most breeds are, so the "normal-sized" characters can be adjusted/created accordingly. Enjoy!
here is a chart I found while browsing another site. Their rules are different than ours, but the information is useful and (I think) accurate.