Hope this interests you. I spent a while with satellite imagery and constructed a video comparison of a range of tropical cyclones by size. Personally I'm amazed at how diverse these cyclones can be spanning two orders of magnitude in size. It would be interesting for me, if anyone could give an insight on the theoretical maximum and minimum size a cyclone can be. Incidentally meteorologists measure cyclone size by wind diameter, which is the diameter of the imagery circle for which tropical storm force winds exist. One thing that seems to be true, is that storms originating further away from the equator tend to develop into smaller cyclones. The biggest cyclones, are unsurprisingly, found in the NW pacific a region notable for its very high SSTs, deep water and low wind sheer. 

https://www.youtube.com/watch?v=ayYIEZm5eZU

Nice comparison there Q 

It seems to me that the very largest typhoons tend to have interactions with broad scale wind fields causing them to have an extension of strong cyclonic winds a long way along a particular axis... which is the main reason why Sandy and Tip look so untidy.

It's when you get a huge storm that's also very symmetrical that I'm impressed. 

As for the largest storm size... that is a fascinating question and I suspect that The Day After Tomorrow does not provide the answer 

Thanks :)

I think super typhoon haiyan would probably qualify. It turns out Haiyan is the only storm ever to hit land as the highest possible T8 (the T scale is a more detailed cyclone scale based on cloud distribution). I regret not including this storm in my video; tbh I think the Atlantic bias is a little too obvious  

Yeah Haiyan was just bonkers, like the Tyson Gay of typhoons