I like the tube preamp and SS power amp combo. You should try it both ways because tubes always fail and power amp tubes are more costly. If you have to re-bias the tubes each time, that is also a pain. A lot of people are into class D power amps, I haven't tried one myself.
Your tube preamp and ss amp thread
Last night I was listening to my tube preamp and my tube mono blocks, noticed an imbalance in the sound, and as usual I traced it to a tube problem in the mono blocks. Luckily, I also own a ss stereo amp as a 'backup'. IME, ss amps tend to be a lot more reliable than tube amps. Nonetheless, I would be interested in how many other folk run a tube preamp and ss amp combo, and if so, what are your choices.