OK this thread is dedicated to playing your favorite faction but in a different way than you're used to. Example below.
A few days ago I got back into ATW and started a Dal Riada Game. Usually its a constant uphill battle as I take the poor northern lands and constantly fight with the Pictish hordes and my ally Alcyud floundering under several boots, so I decided to try something new. I got a modest army together, put them on my small fleet and circumvented my ally Alcyud (sp?) and hit Ynis Manaw's lands. I took their western Mainland holding first, then took their island capital after a small but significant battle. Meanwhile I began converting my homelands to Celtic Christianity but did little else besides economic improvements.
The result? My lands are almost totally converted, Ynis Manaw is about to lose it's last province to me, and I have probably the strongest economy in the land because of my new ports. My ally has also been able to stick it to the Picts with a vengeance (probably because Manaw is no longer harassing them in the south). Go ahead people, try something new, it may just work out.