The funeral, held in Nowra on the NSW south coast on Monday, is the first for the victims of the June 11 Hunter Valley tragedy.
Mr Craig, 28, was among guests travelling home from a wedding when their bus rolled onto its side at Greta en route to Singleton about 11.30pm.
More than 700 people tuned in to the livestream from across the globe.
His sister Georgia, supported by their parents Tobi and Duncan, spoke of how he made friends easily, with precious memories forever etched in their hearts.
Georgia is due to give birth to her first child in two months.
"How cruel is this loss?" she said.
"A lovely, well-mannered gorgeous boy who had matured incredibly to a fun-loving, responsible, thoughtful and good-looking man has been lost.
"He is with us when we remember him. He is with us when we think about our time together ... and he is with us when we tell him we love him."
Mr Craig's girlfriend Bella said they had moved in together just five weeks before the crash, after an 18-month romance.
Instead of planning a future together she is now "incredibly heartbroken" after losing the love of her life.
"It didn't take me long to fall in love with the bright, thoughtful and generous person he was," she said.
"It's so hard to put into words the immeasurable impact Angus had on my life and even harder to accept the fact we've lost such a beautiful, kind and exuberant soul.
"I know that I am a forever better person for having loved and been loved by you," she said.
Mr Craig's best friend Shaun Cunningham spoke of the cheeky and memorable moments they shared.
"We developed a friendship and brotherhood that could never be broken," he said.
His cousin Chris Noon read a poem he penned, Dear Angus, via videolink from the United Kingdom.
He was remembered as an adored son, much-loved brother and brother in law and beloved partner.
Mr Craig worked for BHP, a job which led to a move to Brisbane and then Singleton, the small Hunter town where many of the crash victims as well as the bride and groom were living.
Investigations into the tragedy continue after the driver was charged with 10 counts of dangerous driving causing death.
Police allege the bus was going too fast to negotiate a roundabout.
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