Ralph, is it possible that you can share your opinions?
The original reason I asked the question is my two favorite cameras, RB67 & Yashica 124G do not have meters and these are used for all tyoes of photography.
You got a lot of good advise in this thread already!
I said from the beginning that you will receive as many suggestions as people have meters. The reason? All name-brand meters, currently sold, are good meters. I do not know about any 'bad' meter.
Some work better for certain applications than others, some are very specific, others are more versatile. If you don't use the Zone System, you may not need a spotmeter. If you work in the studio with flash systems, you need one that can meter flash output. If you travel a lot, weight and size may be an issue. If you need more flexibility, a lightweight, tiny meter is not for you. If you do a lot of repro work, you want a retractable or replaceable dome.
It really depends on what you need it for and what fits your style of work. Some people love multi-purpose meters, others hate the compromise they sometime make to offer an all-in-one meter. Dedicated meters are often better at what they do, but you may need more than one meter to cover your type of work.
I suggest you go to a quality dealer and try a few out.
Personal opinion (and that's all it is):
1. every Gossen meter is good (except for their bulky spotmeter)
2. the Pentax digital spotmeter is hard to beat for Zone System work
3. the Zone VI version of the above brought no benefit to me
3. the Minolta spotmeter (not available new) has a better reading precision than above, but that is without practical consequence
4. Sekonic has excellent multi-purpose meters
Some advise based on my experience:
If you buy second-hand, make sure the batteries are still available. Learn how to use a meter (and when not to trust it) and make it part of your film calibration. Don't meter through a filter, meter without and apply the filter factor afterwards (especially with red filters). Understand that your camera, film/developer and meter is a system. Together, they dictate your EI.