I learned on a 152, then converted over to 172 (about an hour) to do my night rating/IMC. I now pretty much fly PA28's (again about an hour to convert) and am converting to a TB10 (so far 1 hour).
Like many people, I assumed that because the 172 is a bigger aircraft, that more speed would be needed for landing. Big mistake. The 172 land quite happily at the same 65kts approach as a 152. Any more speed and there is a big risk of just floating on down the runway way beyond your aiming point. Once that was pointed out to me, it became pretty easy to land. PA28 are also pretty docile. The TB10 which I have so far flown once, is slightly more sporty and glides rather like a breezeblock. It is a great plane though. with vastly improved visibility compared to a PA28