Ok, well I think I have to chime in here a bit. First off, I like your comments on the different Cubs. I have to say that I got into the FCubs because of the Cub Cadets, I have to introduce those guys too. Now I am looking at this as more of a connoisseur. I will define that as saying each tractor has an interesting feel, or gives an experience to be savored and enjoyed. So here goes my opinion, FWIW. For grass cutting, depending on acreage and how bumpy the ground is, a Cub Cadet would give the girls (and boys) something to enjoy, I would pick 169 or a 149 for one girl, and possibly a 123 or a 147 for the other. They are easy to work on, narrow frames not as much, but still rather easy. I like the FCub. So far I have only used mine for grass cutting or some grading of my driveway and I have been impressed. Now for the real hard work, I would recommend something newer. The newer tractors are like luxury cars. I mean, they have everything and decrease the time spent on doing most chores. Don't get me wrong, I love my FCub and it won't leave as long as I can breathe.
Example, I have a newer John Deere 3120. 3pt, diesel, loader, 72" deck, and it even has cruise control! I have been blessed with 5 acres of land, 3 of which I cut grass etc. The Cub Cadets takes me 3-4 hours to cut grass. The Farmall Cub, 59" Pennington deck, about 2 hours. The John Deere, about 1.5 hours or less. If I don't have a lot of time, the Deere is running. If it is a Saturday, and I have all day, the Farmall has the job. I love the sound of the old C60 flathead purring. I love watching the exhaust stack and the flapper as the engine's governor kicks in. I enjoy looking out over the hood and checking out the contours of the sheet metal. I enjoy the gear drive and the smell of the exhaust, and the smell of the fresh cut grass coasting along at just a tad under 3mph. I enjoy that more than anything and I have to say that it is like therapy or something. The Cub Cadets, they have their own unique flare, that causes me to be happy. The 50" deck throwing grass out the side, the single cylinder Kohler singing as I cruise along. I can go on and on... Basically, I think that the old tractors are the best, they stood up to the test of time, they have brought me to get to know so many people on the forums I hang out at and I have made friends all over the country because of them. You can't beat that. Yet, when life is busy, a new tractor to jump in to get something done real quick, well, that is nice too.
My 57 Farmall Cub and my JD 3120 minus the loader bucket.