Personally, I'd rather have an AE-1 which is both auto and manual, or the later model called the AE-1 Program. Again this dates back to the early to mid-1980's, but is certainly more versatile than the AV-1.
Alternatively, you can pick up an A-1 which was Canon's flagship A-series SLR at the time of production. This will offer full manual, aperture and shutter priority, and program whereby it will set both shutter speed and aperture for you. The A-1 was introduced in the late 1970's, so again the light seals will need checking.
Both the AE-1 Program and A-1 were very popular cameras and when you come across one in good working order, you'll certainly enjoy using them.
I watched further on the internet and indeed i found the AE-1 much better.