Peak or non-peak?
I used to work near Leslie, and at peak, I used to take the bus (as it was more convenient), but off-peak (late nights!) I ended up walking to Leslie - and while the Sheppard subway did appear to get some decent peak usage, I seldom would see 10-15 at Leslie in the evening! And Leslie seemed busier than either Bessarion OR Bayview (presumably as there was the hospital nearby driving off-peak ridership).
While I wouldn't be surprised if there's more peak ridership on Sheppard than TYSSE - I get the impression that there's a lot more off-peak ridership - at least that's what I thought, riding it southbound on a weekday evening.
And I thought the very old ridership projections did show that TYSSE service wasn't as peak-dependent.