Phono/preamp/amp chain. One of them tube the others SS. Which one?

As a general 'open' question it depends on all the aforementioned 'depends'. And additional ones, such as budget.

My preference; I use a tube preamp with SS amp. I believe I get the most tube value in way of bloom and soundstage  from this approach, given my system and budget.  

Tube high gain devices are noisy by nature so phonostage is great either solid state or hybrid such as AudioResearch PH3 or similar.
I join anyone who likes tube preamps.
To my tastes and demands of higher volumes tube amp must be BIG, but when outside is over 100f, you try to save every cool square inch of your dwelling.

If limited to just one tube chassis in the chain, I would choose a SS phono stage, tube line stage, and SS amp, as rcprince has chosen.

Fortunately, I am not limited, and all three stages in my chain are tubed.

It appears that everyone would start with tube preamp.
My current system is more or less balanced, and whenever I am ready to upgrade anything, except perhaps the cartridge, this in fact would be the beginning of an entire system overhaul or totally new system. In a situation when I have outboard phono stage but integrated amp with no pre out/ power amp in, getting tube preamp would mean getting some power amp too. I like to wait and upgrade in big steps. But I am going to keep my Nottingham Spacedeck/Spacearm and Nakamichi 682ZX deck for a very long time, the rest can go.

I would use a tube pre. Mine is passive pre and ss for the others but I have a good Tube pre also