You know, I have a couple of Grabows, which I purchased back around 1990, which are good pipes, I don't care what the snobs have to say about it. I would not buy one today because they are so expensive that I can buy a much better pipe for little more money. Also, as I recall, Dr Grabows were always "hit or miss." Sometimes they were great, more often, they were bad.
MM cobs are almost always good. I use them for hiking and fishing. That way, if I drop it over the side of my canoe, I feel little compulsion to A) jump in after it or B) immediately blow my brains out for being so careless.
I also have some Yello-Bole "brylons." I got my first one by accident and then actively sought out two more. I know alot of people do not like them. I think this is because they are thinking of them like a regular briar pipe. I think of mine more like a clay pipe, only MUCH sturdier.
No matter how bad a tobacco is, in never "ghosts" a Brylon. This makes them great for trying new, strong blends. Also, they are waterproof so I take them fishing and hiking if rain or storms are expected. Add to this that the things are practically ENDESTRUCTABLE. Frankly, if you break one, you were trying to break it. They are also easy to clean and, the three I have, smoke well. You just have to treat them like a clay because the bowl heats up. Hold it by the stem.