Compared to, say, some of the Robins, the AA-5A, and a handful of other uncommon types, I've always thought the C150/152 were quite unpleasant little aeroplanes. They're certainly nothing special to look at, they're uncomfortable to get in and out of and to sit in, the view out is awful, their handling is absolutely nothing to write home about, and certain C150 models do stick out like sore thumbs in the crash statistics (links below). I'd level most of those criticisms at the PA-28 too, with its typically-Piper ponderous control response.
I do wonder whether, if we trained people in aircraft which were actually pleasant to fly, and maybe even nice to look at, (and just possibly vaguely modern), we might have a much more vibrant community of pilots continuing to fly after licence issue.
http://www.gasco.org.uk/upload/docs/...%20Version.pdf
http://dev.aerosociety.com/Assets/Do...%20Gratton.pdf