Well from my experiences from cross breeding Angus, Simmental and Hereford cattle my results are as follows. Angus x Hereford = moderate cows, Angus x Simmental = large cows, and Simmental x Hereford somewhere between the two. My baldie x bred cows are my smallest cows and the Simmental are the biggest followed closely by the Angus. The Simmental x cows wean the biggest calves, the Hereford and Angus x calves seem to wean about the same. It's hard to beat a SimAngus if you have the feed. IMO I'm still searching for what I feel is the best cross bred cattle for my area.