From someone who lived in Winnipeg for 30 years longer than I should have:
You should be looking for hotels in and around the Regent Avenue area. Lots of hotels to choose from. Lots of restaurants to eat at. Only 30-45 minutes from the range down roads that have relatively light traffic. There are also a few options for car rental in the area if you need.
There are two Canad Inns on Regent Ave. One at the Club Regent Casino. One a bit farther down. Both would be good choices.
Other choices a bit farther away would be: Norwood Hotel. Canad Inn Windsor Park.
For those who are looking to save a few bucks: Nor-Villa hotel.
For the ballers and shot callers: Inn At The Forks (right in the middle of Winnipeg's biggest tourist area = restaurants, CHRM, Spa, etc)
For the Party and B*ll Sh*t crowd: This requires an offline conversation. PM me for details
For those looking to be forced into some extra shooting in the evening: Anywhere near Point Douglas will do. Use your own discretion.
****THAT BEING SAID:I would seriously wait until the location of the banquet is announced before booking hotels. I am not aware of the organizing committee announcing where the banquet is going to be yet. If the banquet ends up being in Selkirk (god forbid), you may want to re-consider your plans. However, if it was me, I would still stay in Winnipeg and drive the extra distance.