There is no easy answer to that...
Windows is that popular that its targeted more IMHO.
Linux and other OS' (mac and Android) are not targeted as much compared to Windows but I believe that if all these hackers were to concentrate mostly on likes of Linux, etc instead of Windows then the tables would turn and a lot of vulnerabilities would be discovered in these OS' instead. No one OS is secure as hackers will always (unfortunately) find weaknesses.
For just straight forward browsing and not wanting to do anything else like install software, etc then yes by all means use Linux.
If, however, you want to use other software (there is significantly more apps/software for Windows than other OS') then you may have to use Windows.
I've known a lot of users buy Macs (due to the status of having a mac) and ended up dual-booting with Windows' simply because they wanted to use it for more things which meant have the apps/software to do it.