I've got an older Silva Ranger I've had for almost 20yrs and have loved it. That model is now made in China and gets bad reviews. I decided to retire it, so I recently ordered the Brunton and Suunto models you mentioned. I haven't had a chance to use either one in the field yet, but my initial observations are that the Brunton 15TDCL is a very good replacement for the old Silva Ranger, and a very good value in today's compass market. It's made in China too, but doesn't say so on the compass itself (which I appreciate), and the quality seems very high IMO. The Suunto has a world needle, sighting window, a glow in the dark dial, and is made in Finland, all of which I think makes it a step above the Brunton. So in short, if money's tight, the Brunton is a good compass since the Swedish Silva Ranger isn't available anymore. If you've got some extra coin, I think you might like the Suunto better.
I'd also like to give a quick plug for Maptools.com. You'll get a lot more out of ANY compass with a good map and a map ruler or "roamer."