Quoted from Astropin:Unless there is no location pinball near you I prefer ST over MET. MET is fun but just feels a tiny bit more like work getting to the good stuff compared to ST.......but that's my take, I realize others feel the exact opposite way and I can understand that as well.
I have both, and would have a hell of a time deciding which one would go if I had to make the choice.
Like you said, some of the modes in Metallica take a lot to get rolling. Best way to get it going (to me) is with a Sparky multi-ball. Once you do get it going, its amazing. So cool to have a great game and have it just go from Sparky into either Lady Justice or Fuel modes.
The one potential downer to Star Trek depending on what appeals to you is that nearly all the modes are timed. Even the ones that aren't, like Vengance have a timed shot you need to get the mode started right. I could see this "always on the clock" thing getting a little tedious if you don't have other games that don't have so many timed modes/shots.