Xenoweek!
I honestly don't know which is my favourite, Xenoblade 1 is an absolute classic, amazing story & execution, whereas Xenobalde X is more ambitious, probably the best game featuring mechs ever made. I've not finished Xenobalde 2 yet so the jury is still out, the battle system has upsides and downsides over the other style of Xenobalde combat in 1 & X. The annoying quality of life stuff in 2 probably nudges 1 above it.