The best he's ever done that we can't dismiss on lack of evidence was Sodom and Gomorrah. That barely counts as a party trick to someone with nukes. There also hints of limits to his power in the Old Testament, references to iron chariots and the like being enough to turn it aside.
The actual miracles, too, have degraded with time. To cure the sick, the blind to see, etc. no longer hold the power they once did. Many have been surpassed. To raise the dead is the only truly impressive one left. Other gods and goddesses have suffered similar fates. The day will come when none of them will have matched the works of human hands, and then what?