The 22-year old Wolves striker has enjoyed a stunning loan season with the Hibees, netting 28 goals on his way to a handful of individual awards, with former Celtic, Fulham and Everton midfielder Collins likening him to Tottenham's Gareth Bale and Borussia Dortmund's Robert Lewandowski.
"You only have to look at his goals on YouTube to see some of his fantastic strikes.
"You could go to any top league in Europe and the goals have not been as good as some of the ones scored by Griffiths - not even by the likes of Lewandowski at Dortmund. It is not luck either, not with the amount he has scored. Even the stunning free-kick he scored against Hearts at Easter Road that was wrongly not given, what a strike that was.
"So Leigh will be looking forward to the final, because that is where the top players shine, on the big stage with the world looking on.
"Could he play in the Premier League? If his mind was right and his lifestyle was right, then yes because he has the talent.
"He could be a big player for Scotland too if all those things are right. There are lots of players with talent, but you need other attributes too. You need to be a real professional for ten years, not just six months.
"Any Premier League clubs looking at Griffiths would have to do their research, look at his lifestyle and his family, because it is about the whole package. It might be seen as a gamble but there is not a huge amount of money involved. It is down to Leigh. He's got the football world at his feet and he will dictate where he goes by his behaviour and by his professionalism."