I'm installing Ubuntu right now and seems much more aesthetic than i thought open source software should look like. It looks like it has an apps store as well. Which implies to me that the developers have some kind of monetary incentive. Or is it much to do with nothing? Or am i just paranoid? What do you think of Ubuntu?
Secure than windows & mac : Yes
Most secure linux os: Not sure
More secure than Mac? Don't be too sure about it, Mac is actually very secure and I haven't read of someone being on Mac and getting bitcoin stolen.
Agreed, OS X itself is very secure. One COULD go even one step further. Storing one's offline wallet in an encrypted sparsebundle disk image using a complex password would be considered EXTREMELY secure.
In fact, the main "security" concern at that point would be to ensure proper offsite backup of the encrypted disk image.