I don't need poor Samsung apps such as SamsungApps, Chat-On, Blurb, S-Translate anymore. Can i simply uninstall them and make an exclusion in my Updates so as not to get them back again?
You can remove them, you just need to root your device and then download titanium backup and you will be able to clean them out completely!
1) How to root your phone? Depends on your device!
2) Stop updates? Go to apps, find samsung apps and there you have an option to specify when to update them! Choose none and you are good to go.