Excellent position to be in and well done for asking.
First things first, where do you ride most often? Do you ride a variety of trails, or stick to one thing mainly?
Full suspension will almost certainly be nicer to ride downhill, but usually at the penalties of costing more, requiring more maintenance, and being a bit heavier.
I’m still of the opinion, that for most people, unless you ride somewhere really flat or really steep/rocky/technical, if you can only have one bike you’re best off with a hardtail with a 120mm suspension fork, discs and a good range of gears. Others will disagree of course, but IMO it’s a good middle ground bike that you can have fun on most places.
That said, have a go on a full sus bike… You may love it so much you feel you couldn’t live without one!