I've also gotten 20-40 Bombardiers and 100+ Cuirassiers which I also show on the picture below this one. And I must say I prefer the rewards of the defensive Prizes over the offensive ones since offensive ones only seem to be giving the offensive units + resources rather than both offensive and defensive units.
So I suggest ye be considering Prizes as an exchange service, albeit one that is not very much in yer favor, that is, the troops ye lose usually cost more than the troops ye gain, but ye must also consider that perhaps ye don't even have the Discoveries and Buildings to train those expensive units and also it takes a long time to train them while this way ye can get them instantly.
Also if ye combine yer Prizing adventures together with the Global Missions then ye be cutting yer losses and maybe even be making a profit since ye get also rewards from the Global Mission on top of the reward from the Prize itself. In the stats I have so far, and I be probably making a separate post on this topic, the average number of Prizes to raid before getting a reward is 8.