Keep in mind,the Canon has absolutely no indicator in Manual.
This is not entirely correct. The AE-1 (as well as AE-1P and A-1) will display the aperture value its meter says is correct exposure, whether in shutter-priority mode or manual. In manual, however, the needle does not respond to movement of the aperture ring. This is not all that uncommon with auto exposure cameras from that era. The Minolta X-700, for example, does just the opposite. In manual mode, it will show the shutter speed it recommends but not the one actually selected.
I recommend to the OP that if he plans to use his camera in manual mode, that he seriously consider buying a camera where the meter display is coupled to both shutter speed and aperture adjustments. Among Canon FD cameras, the best candidates are the F-1 (both models, but I prefer the early all-mechanical one), the FT-b, and the AT-1. Among Nikons, any of the F-series Nikons (F, F2, F3, F4, etc.), the Nikkormats, the FE-series and the FM-series are all useful in this respect. Most economical are the Nikkormats, and the FM. Minolta would be the SRT-series, the XK, and the X-570 (I don't know about the XD-11). Olympus models are the OM-1 and OM-3 (I don't know if the OM-2's meter is fully coupled in manual). Pentax, the Spotmatics for M42, the K1000, KM, KX, and K2 are good candidates for K-mount lenses.
If one desires some level of automation along with a fully-coupled meter for manual, the field is thinned considerably. The only Canon FD camera I'm aware of that offers full meter coupling in manual plus at least one auto exposure mode is the New F-1 with AE Finder FN (for aperture priority) or with the motor or winder FN (for shutter priority). Among Nikon manual-focus is the FE, FE2, F3, and Nikkormat EL (all aperture priority). Minolta is the XK and X-570 (both aperture priority, dunno about the XD-11). With Pentax it's the K2 and LX (aperture priority auto), although there might be others. As for Olympus, the OM-4 provides these capabilities. Perhaps one of the OM-2 series does also? Not sure.
If I had to choose a camera that offered fully coupled manual and at least one auto exposure mode, I'd probably choose the Canon New F-1 with AE Findeer FN. These cameras are extremely robust system cameras with many options and accessories, and nowadays can be found for quite reasonable prices. As has been mentioned previously, not only are Canon FD lenses excellent optics, but it seems that of all the major makers' lenses, they are some of the most economical as well.