For many, many years I used Oster A5 and was very happy with them. You can service parts of them yourself. But of course, they don't make things like they used to. (the OLD Oster A2 was a work-horse that never broke, but of course they are discontinued a long time now) I have 3 pairs of Osters.

My one co-worker prefers the regular Andis. She likes the shape and the weight. But she grooms a LOT of dogs, and they give out within a year many times.

I also have an Andis AGC (not with a light) and I do like it. It is quieter. But I have not had it long enought to know how it will last.....but I would buy another one.

Never tried a Laube.

I prefer single speed. Dual speed clippers heat up faster.