Sharing what I did for my 100th in case it gives you any ideas.
For my 100th I wanted to brew a big shelfie that I could save for months / years to commemorate the occasion. I also wanted to brew something I had not brewed before and needed to add to my repertoire. For me, that led to brewing a barleywine that I called "". That year's batch was decent and I still have bottles of it years later. About once per year or maybe less often, I rebrew this barleywine with tweaks and it has become a really dialed in beer that has nabbed a couple medals. And now I have bottles from several different years to share with buds on special occasion.
If you must pick from your list, I'd recommend cold IPA. I brewed a couple last year and was blown away. Tasty hop bursting style that is much cheaper to get hoppy flavors out of than hazy ipas. I have recipes to share for anyone interested!
Cheers
Rusty