Wilkinson captained Toulon to a staggering 16-15 victory over Clermont Auvergne in Dublin, kicking three penalties and the decisive conversion following Delon Armitage's try.
"It is right up there," Wilkinson said. "In fact, it goes beyond (winning the World Cup) because life is in the now, it is not in the past. The next thing you search for, the next goal you set life just gets better and better if you are in a club as good as this."
Toulon were on the back foot for the majority of the match and their shot at European glory appeared over when tries from Naipolioni Nalaga and Brock James put Clermont 15-6 ahead, but Toulon hit back with Wilkinson landing a third penalty and then Armitage streaking clear after Juan Martin Fernandez Lobbe had pilfered a turnover.
Toulon then defended valiantly to protect their lead and Clermont lost their composure, with David Skrela seeing a late drop-goal attempt charged down.
Wilkinson added: "It has been hugely important (to win this). You ask yourselves the questions all the time whether you still merit being there, whether you still deserve to be in teams like this. Moments like this give you that opportunity to look at it and realise what an amazing opportunity we all have."
The statistics highlight how much Clermont were on top, with Toulon enjoying just 25 per cent of territory and 32 per cent of possession but they tackled like dervishes, making a remarkable 176 to 66.
Wilkinson did not miss a place kick in the quarter-final, semi-final or final and he combined with Mathieu Bastareaud to close down Skrela as the Clermont fly-half lined up the late drop-goal effort.
Wilkinson turned down an invitation to tour with the British and Irish Lions because of his commitment to Toulon, with whom he has just signed a new one-year deal having contemplated retirement. For Wilkinson, the manner of this victory summed up why he had put Toulon first.
"I had a chat with Warren Gatland and said 'this is me now' and because of the stage of my career he fully understood," Wilkinson said. "We have played quarter-final, semi-final, final and you fight to stick in there to earn every point. That is what makes it feel so good at the end."
- Sports & Recreation
- Clermont Auvergne
- Delon Armitage