I know what you meant, but I think it's helpful to talk about "trendy" in the context that matters: something popular that will either widen the competitive moat for existing customers, or bring in new customers that are soon to graduate into wanting enterprise support from a VMWare or a Microsoft.

VMWare is an interesting possibility! Docker seems like it would cannibalize too much of their existing product line, but VMWare's existing products are already kind of self-cannibalizing. (This is why many engineers find the enterprise market so confusing. Nobody differentiates products well, because past a certain size, networks of human relationships [sales, support, etc.] matter more than branding.)

But from that "good for us" perspective, VMWare looks as bad as Oracle these days. I would still "vote" for Microsoft.