1) Canadians should believe that their intentions as voters are fairly translated into elections results, without (the) significant distortion that often characterizes elections conducted under the first-past-the-post system
2) Canadians’ confidence needs to be restored — in their ability to influence politics and in their belief that their vote is meaningful .
3) Reforms need to increase diversity in the House of Commons and politics more broadly.
4) The chosen reform can’t make the electoral system more complex.
5) Voting needs to be more user-friendly and accessible.
6) Local Connection an MP has with their constituents should be maintained.
7) It needs to be secure and verifiable.
8 ) Canadians need to be inspired to find common ground and consensus.
If you want to keep it simple, approval voting is the way to go. It easy to understand, it is easy to tabulate, and it tends to elect the Condorcet winner if there is one. You can always support your favorite without being penalized for it and you can also make compromise votes if you feel that you have to. It is just as easy as FPTP, but it is more expressive and representative.
If you want proportional representation, the simplest solution is to use asset voting. The ballot instructions can read:
Each candidate can have a transfer list that is public to the voters and STV can be used based on the candidates transfer list.Vote for a single candidate. Top 5 candidates win a seat in the House of Commons. Candidates may transfer all or part of their votes to other candidates.
Using STV directly is a bit confusing and complicated for voters. It is not very transparent and it is hard to tabulate results. Also, you can't expect voters to want to rank 50 candidates. Voting for a candidate would be like voting above the line in Australia, but the list would be tailored to the individual candidate instead of the party.