Canon EOS (I picked up one of these at a charity store for the same price)
Pros
- lightweight, easy to carry
- kit zoom lens takes you from moderate wide angle to telephoto and is decent (but not stellar) quality
- takes huge range of Canon EOS lenses, and accessories like speedlights
- you could in future buy a full frame Canon digital like the 6D and be able to use the same lenses on both film and digital bodies, with no "crop factor" of smaller-sensor digital bodies
- it's quite fast to use, autofocus is acceptably quick, it has autoexposure, so you can easily use it for social and street photography
- built-in flash for fill light when taking backlit portraits in sunlight and for indoor social photography
- easy to find cheap replacement bodies if this one is damaged/lost
Cons
- cheap plastic construction, feels tacky. The lens mount is also plastic, with careful use that's not a problem, but it's more susceptible to damage
- zoom lens has maximum aperture of f3.5 at 28mm and f5.6 at 80mm telephoto end, which limits low light shooting; I suggest you get the cheap 50mm f1.8 lens as well. Also, these widest apertures limit the shallow depth of field effect provided by a wide aperture (e.g. f1.8) lens at closer focus distances
- camera needs batteries to work
Yashica AX
Pros
- solid, metal construction; it probably feels better in the hand
- check manual - will work without batteries (see earlier comment about sunny 16)
- good lens with fast f1.4 aperture allows shooting in low light and better depth of field separation @ f1.4 and closer focus distances
- basic cameras are good to learn on, as all controls are simple and tactile
- fixed focal length 50mm lens teaches you to move your body to change the viewpoint, rather than turn a zoom ring. This is an important lesson.
- lenses for this system are also quite easy to find
- with practice, a manual camera can be just as fast to operate as an automatic camera, and you will learn good technique to do that
Cons
- heavier to carry around all day, particularly if you have other lenses for the system (which will also be more solid, metal-construction)
- no built in flash
- no path to migrate to digital with same lenses
With both cameras the replacement cost is probably much lower than the repair cost.