You will enjoy either one. I would have a tough time making that decision. Both engines are proven, start well and last with proper maintenance. I have to say I like servicing the Honda better. It's quick and easy (3 nuts) to pop the starter, lift off the fuel tank for cleaning and get access to the block to keep the cooling fins clean.

Either engine will do what it is supposed to do and will run for a long time if serviced regularly.

Isn't the 20192 just a Lawnboy painted red? From the Toro website, they admit the Lawnboy deck does a better job at bagging grass than the Super Recycler.

"From the Toro website, they admit the Lawnboy deck does a better job at bagging grass than the Super Recycler."

Hmmm...that could be interesting information. I looked on the Toro website and could find no such admission however.

"Our new Super Bagger mowers enable you to meticulously maintain your lawn more efficiently and effortlessly than ever. The design of the cast aluminum deck and the large rear-discharge opening forces more grass into the bag, so you empty the bag less often. And the EZ Lift Bag makes bagging easier than ever  simply lift the bag on or off with one hand."

I take that as it is their best bagger. SR4 probably mulches better, so I suppose it depends on which you intend to do more often.

It's really apples and oranges between those two since they are different designs. A better comparison would be between the 20192 and LB 10795. That might boil down to whether you like LB green or Toro red better. They both have the same Honda engine and cast aluminum deck. The LB has the 'Easy Turn' front wheels which do contribute to maneuverability. I have a similar set-up with my LB 22271 commercial (now out of production). Same deck but commercial Honda engine and steel wheels. The mower does everything well, and the Honda engines are the smoothest and quietest. I would have to take the 20192 or 10795 over the SR.

"... The design of the cast aluminum deck and the large rear-discharge opening forces more grass into the bag, so you empty the bag less often."

Forces more grass into the bag than...fill in blank....

Empty the bag less often than...fill in the blank...

There is no basis for comparison including a Lawnboy mower. Toro is selling a pricier lawn mower with a motorcycle manufacturers motor that does less than previous models but does in a better way.