I personally don't like disposable batteries unless required (like avalanche beacons, because of the battery test function or Hazloc/ATEX certification requirement).

With rechargeable NiMH's; a recharge is dirt cheap. I have been using the same Sanyo Eneloops for a decade now.

The issue with liquid and gas lanterns are not safe to use indoors, the fragile mantel, fragile lantern glass, safety of storing fuels, large and heavy. But I do like that little sizzle sound and that incandescent light for the ambiance.

LED lanterns are totally safe indoors, can be much smaller and lighter, a good one doesn't have many fragile bits (some battery carriers look cheap), batteries are fairly safe to store, on rechargeables dirt cheap to run. There are different color white LED's, but generally the ambiance of a white fluorescent tube.