The background for Silent Death is ok. Where it loses out to Battletech is that in Battletech they have continued releasing new material. By contrast many of SD Housebooks have failed to see light of day with a long gap between House Colos and ODD II books.
Yes, you're partly right, there are a lot more BT books published every year than SD. But it's not entirely a matter of quantity, I've been into BT for the last 2 decades and from the very first book the BT Universe was better fleshed out than SD, in my opinion. However, it wouldn't hurt SD if ICE does something more with the franchise than sitting atop of it. I suppose there's too much effort put in developing the ancient and clumsy Rolemaster.