Bugs Bunny, it seems. The happy hare hopped into first place among postage stamps, with 45.3 million stamps collected in 1997. Tailing bugs this year were stamps depicting classic aircraft, dinosaurs, endangered species and dolls. But not to worry, Elvis is still the all-time king, with 124 million stamps collected since it was issued in 1993. Among the 10 most popular stamps of 1997, more than 231 million were saved, an increase of more than 31 million over last year.