I think I can honestly say I've played 1-1 more time-wise than I've played actual full game attempts. The longest I've ever played full game attempts was maybe 4.5 hours straight (like 1 or 2 times), but I've had multiple 1-1 sessions over 5 hours (mainly going after challenges and practicing skills).
If I had to estimate (and err on the side of over-estimation), I say my full game attempts total time is about 100 hours. I played maybe a total of 50 hours to get to 370K, had maybe 15 or so 400-700k games, a KS, and also about 4-5 sessions playing at all-out pace mixed in there. Maybe if you added in KOs and other tournaments there's something like 10 more hours in there. If you added in all the other time going after challenges, WBH, and 1-1, then, idk... maybe I'm at 300 hrs or something like that.