One that isn't going to surprise anyone, and one that's a bit of a shocker...
The best wood-aged Port I've had so far this year is a Quinta da Romaneira 40 Year Old Tawny Port. No surprise there, right? If you want a Colheita, the best one so far would be a 1963 Kopke Colheita.
The best Vintage Port that I have had so far this year is a tie between the 1985 Graham at the "Best of the 80s" tasting here in Seattle and the 1970 Dow at the ACPT Dow Vertical in NYC. The Dow would be a bit of a surprise though not really a shocker, but I'm being sneaky. Those are just the best Vintage Ports that I've had so far this year.
The best bottle-aged Port? That would be a 1994 Pocas LBV. Yep. Blew everything else away. An amazing Port of any kind. A truely astounding LBV.
Only the 2nd Port in my "career" where I've scored a perfect 100 points, a bottle that my buddy Sean opened in repayment for the night before when I opened a 1963 Nacional, which was only a 99 point experience. His was a pristine bottle of 1896 Dow which remains one of the top 5 wines (not just Ports) that I've ever had in my life.
As to the wood aged Ports ... although the 1970 Crasto Colheita was fantastic, I'd have to give the nod to the 2006 bottling by Real Companhia Velha, which produced an amazing wine to celebrate their 250th anniversary with the oldest wine in the blend dating to 1867 and the youngest was 1927. Remarkable juice, 2000 bottles released at only 200 Euros. Loved it and hope to have it again someday.
the two that first spring to mind are not necessarily the most excellent in absolute terms but the two wines which surpassed expectations by the furthest...
Quinta de la Rosa 1991 - a revelation: very attractive for drinking right now, leading to bartering over loose stock at the table
Royal Oporto Quinta da Carvalhas 1970 - adding weight to Tom A's maxim that the 1970 vintage was so good that anyone could hit the ball out of the park.
Best wood aged? for QPR, the San Leonardo 10yr tawny. But ignoring price, the Dalva 1952 GW.