It really depends on the specific example of each, as opposed to a broad generalization. There are excellent examples of both technologies, so I’m confident you can find examples of either that will play well with the rest of your system.
I went with a solid state Hagerman Bugle based on cost/curiosity, and was pleasantly surprised...especially after making some mods. However, Hagerman's upper line is tube, which I'm ultimately interested in. (Cornet MM/ Trumpet MC)