It depends on how you value the points. Here is TPG's point valuation
http://thepointsguy.com/2016/11/november-2016-monthly-valuations/
If you by his values or something close then the UR points you have are worth $252 and the Marriott ones are worth $245. While UR points are far more valuable they are also easier to earn through bonus spend across multiple cards. As straight cash value the UR points at a minimum should be valued at 1.25 if you have the CSP and 1.5 if you have the CSR. Since you are considering using the UR points as cash and I am thinking you have the CSR then the hotel is $180. In this situation I'd actually use the UR points because the redemption value on the Marriott points is far less. At a minimum I would earn .01/$ for spending on the Marriott card. Therefore, I wouldn't touch those points unless I am getting at least .01 value for them and I would use the valuation
@Albort used.
Personally, if using the CSR travel credit was an option then I'd go that route and earn points for the stay. Another option would be to see if that hotel was a cat 1 - 5 and my annual free night certificate for having my Marriott card was available for the stay. This is mostly because I prefer using UR points as miles to book seats in first so I value them pretty high. The thought of using them for a hotel stay makes me cringe
but I have done it before especially when trying to cut costs
on what would otherwise be a very expensive vacation. For example, in 2015 we went on the Frozen
Disney cruise that left out of Copenhagen and went to Norway, Iceland, Scotland and finished off in Dover. That cruise was the most expensive cruise we'd ever booked, plus we added the pre-cruise Adventures by Disney in Copenhagen trip to it. Now, we used discounted Disney gift cards that also racked up 5 UR points/$ and were loaded to the DVA account to pay for both but was still a lot of money out of pocket. We were getting into Copenhagen a day before the ABD trip and wanted to stay at the same hotel which was the Tivoli. We used UR points to pay for the Tivoli which saved us about $350. I would have done it even if the redemption value was only .01/point or less. I simply didn't care and just needed to cut costs where I could. We decided to stay in London over the weekend after the cruise. The St. Ermin's hotel was going for 40K Marriott points/night or $350/per night and taxes and fees would have likely pushed past the $400 mark. We used the Marriott points. We couldn't use the free night cert since it was a cat 8 hotel. Even if we weren't getting .01/point for those Marriott points I would have used them. My point of all that is simply that how anyone uses or values their points is subjective and sometimes depending on the circumstances the value of a point won't even come into play. I hope that helps
. It may not be the BEST value but it works for me.
