I'm going to go for Sungjae Im.
And my favourite tournament is a tough one. A close second for me would be the Byron Nelson Championship at TPC Four Seasons & Cottonwood Valley at Las Colinas, but only because I marshalled there in 2005 & 2006 when EDS were the main sponsors and I worked for EDS in the UK so was able to go. I even got to play on Cottonwood Valley, one of the two courses they play on the Thursday and Friday. The 1st green at Cottonwood Valley is in the shape of Texas, with a water hazard denoting the Gulf of Mexico at the front right of the green...
The first year most of the top players were there (unfortunately the second year there were very few for some reason). I was marshalling the walkway in front of the 9th tee, from where we could also see the 4th hole, 5th green, 6th tee, and 8th green. I saw John Daly hit a monster drive on #4, at least 40yds past his playing partners. Then I heard a huge roar as he holed a greenside bunker shot on the 5th for a birdie 2. I also saw Tiger Woods slice his tee shot so badly on #4 that it actually hit a wall which was miles out of bounds... and bounced back onto the fairway, albeit a long way back. But the highlight was after finishing marshalling on the first day I walked over to the back of the 17th green, the signature par 3 hole. A group was just leaving the green. It must have been a good 10 minutes before the next group got to the tee. Vijay Singh was first to play... and promptly holed his tee shot for a hole in one. What perfect timing to get to watch that hole!
But alas, that would be my 2nd choice, my first choice can only be The Players Championship at TPC Sawgrass, regarded by many players as the 5th major.