Short answer: install Ubuntu.

Medium answer: Ubuntu is best to start and stay for it's ubiquitous and has become synonymous of Linux. That haves the all important consequence of standardization of content for that distribution, which you will need to look for apps and troubleshooting.

Final answer: it entirely depends on what you are looking for. If you value what Linux offers over the comfort of Windows, it will worth it. If not so much, it will not. Ask yourself seriously: what are you trying to achieve by considering switching? Is Linux the answer?