I'm still a fan of the railtown site for the stadium / arena combo. I think those are better uses for trackside land than residential development is, and while you might not be able to accommodate the tailgate culture at a central location, having fort Calgary right next door for food vendors and beer gardens is a decent substitute
but.. if for whatever reason, the railtown land owners don't want to come to the table and be a part of a huge, potentially Olympic project for the city, and it has to be on stampede lands instead, I think stadium at the north end, and new arena on the big 4 site would be the best layout
and while I agree a stadium has to incorporate as many possible uses to get good value, I'm not sure the field-house combo is the way to go..
doing a blatant rip-off of BC place seems like the easy win for stadium, especially if on stampede grounds. make it covered, and integrate with BMO for the increased conference space.
BC place averages 200 days of use a year, does any other stadium in Canada even come close to that?
Not sure if McMahon could be retrofitted for the field-house in any way, but even a whole new build would be better located there imo