Forget BSD, it's not anywhere near as well supported as Linux - but it does look the same.
It uses an awful partitioning scheme involving 'slices' very similar to early MAC's really and should you decide to install multiple versions of Linux, BSD does not play nice with Linux partitions
No, there's only one contestant in the free OS stakes and that's Linux
Whether you choose to follow the sheep into Ubuntu land is up to you, but there are lots of different versions of Linux to try and one should suit you
As far as beginners are concerned, these are your choices IMO
PClinuxOS - much better for beginners than Ubuntu
Mint - a customised version of Ubuntu that is better for 'newbies'
OpenSuse - very solid, probably better suited for serious use
All have a basic 'windows' look and feel because they have menus and icons to click. But if you expect any to mimic Windows entirely, you're going to be very disappointed