Recs.
Updated
SpecsUpdate
Pros
Pro Lightweight core
Sparky is designed to be lightweight in it's core. It is based on Debian but optimised for old hardware, meaning you can run a full heavy desktop environment on a lightweight foundation, bringing greater performance compared to similar Debian or Ubuntu-based distros.
Pro All vanilla desktop environments available
Any Linux desktop in it's vanilla form can be installed on top of Sparky, whether that be alongside a pre-existing environment, or on top of a basic command line system. Furthermore, the command line system is easy to operate due to Sparky's advanced installer utility, from which you can choose whichever desktop environment you desire, straight from the Debian repositories. Guidance is on their website.
Cons
Con Calamares is buggy
Calamares has some issues with EFI systems eg: It does not resize too small EFI partitions so the GRUB install will often fail on regular W10 installs(they have only 100MB EFI partitions). It can also not handle multiple EFI partitions and will always overwrite your existing EFI entrys which can lead to a non-booting system.