What hour is more valuable in terms of experience to apply for a heavy jet position in a future.
I would say the Citation Bravo.
It's a MPA (two crew) and a jet, so if you want to apply for a 'heavy jet position' in the future, this experience would be more relevant than the Saab.
Although it's a long time ago, I was in this position myself. I was a flying instructor with about 3500hrs and then flew as copilot on the Citation II for 3 years/1200hrs. (Alternative jobs were available on F-27 and Shorts turboprops.) After that I joined an airline in the RHS of a B737 and was a captain within 18 months.
At the airline interview, they were very interested in the fact that I was familiar with high-level airspace, met and ATC. I had also visited all of the airports to which they operated. I can't say whether similar experience on a turbo-prop rather than a Citation would have made a difference, but it felt like the jet time was important to them.
Good luck, whatever you decide!