I'll agree that Oliver's comedy writing just gets repetitive. I think Sam Bee's humor is so sharp but sometimes it's just so fast I feel like I have to watch it twice (not that that's a real problem).
Still, the thing about Stewart's Daily Show is that it was basically required watching every night for political fans as well as elites, it seemed. Politicians and media types watched and you could feel the way it helped shape narratives for everyone. Who has that now? Personally, I think Oliver's info-tainment pieces are the closest. Not the best satire, but they feel more "required" than all of the others. Meanwhile, Sam Bee's sharpness is just so strong and great, but no one watches TBS. I bet the average person doesn't even know what channel or time she comes on.
Comedy Central really fucked up letting them go. Imagine if we had Oliver followed by Bee as the successors to Stewart & Colbert. Would have been so strong.