Hello and Welcome
I'm a bit partial to the Marlins for no other reason that they just suit me fine.
The Mod 60 has a reputation for superb accuracy. Some report them to be a bit temperamental with ammo choice. I've not found that to be typical. As with most semi auto's there is a need to keep them clean. Many of the used 60's I've acquired were improperly maintained or had worn parts (mostly the recoil buffer, firing pin and/or recoil spring. All of which are easily replaced) which led to malfunctions.
Marlins bolt guns also have an excellent reputation for accuracy and durability. They can have heavy triggers. This is easily remedied on the older guns with a bit of minor tinkering. The new rifles have a revamped trigger, which is an improvement over the older version. There are also aftermarket trigger systems available. They are a solid rifle.
Even on the Model 60 maintenance is a simple process. Marlin used to include instructions that provided step by step procedures for dis-assembly. This is a very simple process. I mentioned "used to" because its been a long time since I've bought a new Model 60 and do not know if the dis-assembly instructions are still included. However, they can be found from the Internet.
The bolt actions are pretty straight forward regarding maintenance.
Maintain each as instructed in the owners manual and you should have no problem putting them through the paces.
I believe that some of the newer bolt actions are drilled and tapped for scope mounts as well as still having the 3/8" dovetail rib. The Model 60, with its aluminum receiver has just a rib.
My suggestion would be to buy one of each. You probably will not have to search long or hard to find several good examples at local shops. You will be amazed at the many variations that have been produced over the years. Depending on the market in your area, decent versions should be obtainable for either side of $100. The Model 60's are usually in the $70+ range. The Mod 25's closer to the $100 mark. Still a bargain for a decent rifle.
I hope this helps a bit.
Good luck with your choice.