The Gabon international, 29, has scored 20 goals in 28 games since arriving from Borussia Dortmund.
Ten of those strikes have come this season to help Arsenal sit fifth in the Premier League table.
But Crouch doesn’t think Aubameyang gets enough credit compared to the frontmen of Arsenal’s rivals.
“Arsenal negotiated another difficult task at Old Trafford on Wednesday and Unai Emery’s reign continues to gather momentum,” he told the Mail.
“I was dismayed that his first game in charge led to him being subjected to huge amounts of criticism and said as much in my second column of the season.
“A manager of his pedigree deserves respect and time, and he is proving to be a shrewd appointment.
“What I’m struggling to work out about Arsenal’s fantastic run is why Pierre-Emerick Aubameyang’s on-field brilliance is not being highlighted more.
“He’s a striker of the highest calibre and his record since coming to England has been phenomenal.
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“If Harry Kane, Mohamed Salah or Sergio Aguero had been on a run of 20 goals in 27 games – his second in the 4-2 win over Tottenham was first class – we would be in a hurry to say how great they are, but it feels as if some people aren’t paying attention to Aubameyang.
“Alexandre Lacazette has impressed me too and if they keep working in tandem as they have been, they are going to have a real chance of finishing in the top four.”
Arsenal boss Emery is keen to extend a 20-game unbeaten run that no club in Europe’s top five leagues can match when they take on Huddersfield on Sunday.
He’s called for fans to be as loud and as aggressive as they were against Tottenham and said: “We need the same spirit as Sunday.
“Every supporter needs to push like they pushed against Tottenham.”