Ocarina Of Time > A Link To The PastZelda > Mario on switch, but I can see people picking Mario, it's much easier to get into and you can play it in 10 minute chunks and still enjoy it. Zelda takes more of your time, or at least more continual gaming chunks.
I do think Zelda gets the Nintendo magic best though and honestly would say it's prob the most magic Nintendo have given us since A Link to the past.