I'd opt for the marlin, hands down...but I'm biased.

I own a few other marlin rimfires. As mentioned above, the 917v shares the same magazines as my older 25M.
Fit and Finish--I think the marlin is a little cleaner, less machining marks, etc. It's also a little smoother to operate, with less slop.
Trigger- The savages accutrigger has an advantage out of the box....it can go pretty light, and is quite safe.
The marlin will be fairly heavy--but with a spring swap and some light honing (or a replacement rifle-basix) you can easily get the trigger down to a crips 2.5lbs or less. I did a DIY job and have a safe 38oz. trigger on my 917v. I also like the wider trigger the Marlin has to offer.
Accuracy - About the same. People on RFC are always debating this, and a general consensus is the marlin has the edge. In reality, they're dead even! Either will shoot sub-moa on a good day. Pretty much any HMR is going to be a tack driver. The barrel for marlin or savage are great.
Customer Service - Both are good companies to deal with, but I think marlin is better. They are willing to go above and beyond to resolve ANY issue at all. They have been VERY good to me in the past.
They have offered FREE replacement parts to me on rifles I purchased used (some being nearly 20 years old). The one time I had an issue with the quality of a new product, they offered FREE replacement, including shipping, of the entire rifle. The problem was rather small, so I asked for just a replacement part. Instead, they upgraded and sent me extras! They also used rush delivery for quick shipping. A+ to them!
Ultimately...
Just go with the rifle you like the best, and that fits you well. You can't go wrong with either rifle. They are both a great "bang for the buck" that will amaze you with their accuracy. IF it's not a rifle you plan to lug around a lot, opt for the bull barrel. I *REALLY* like the way my 917v (heavy barrel) balances.