The TCAS won't descend you into a mountain, EGPWS has priority. Yes, Pitbull, if you don't follow the RA, the coordinating aircraft will have a RA of greater magnitude, but following it is the correct response. The San Diego B727/C172 crash occurred when the pilot's thought they had there traffic "in sight" when the real conflict was not in their sight. If they had a TCAS II RA, decided the plane they had in sight was not really a conflict, they would have had the mid-air. Follow the RA.
The German mid-air was caused by pilots following the ATCO's instructions, rather than following the RA. This isn't brain surgery-TCAS is a "last ditch", save your butt device, not an alternative ATC device, as our friend SSG V1.10 would believe. It has saved me twice in civil aircraft and several other times in mil ops. I investigated a crew that decided they were smarter than the ATCO and the TCAS-nearly created a mid-air!!
GF
SSG: You have been shown to be in error and dangerous by any number of Ppruners that are experts in aviation, in all disciplines-pilots, engineers and operations types-a smarter man than you would retreat and try to learn, as opposed to continued idiotic posts.