I'm trying to decide which one will fit my hands / be more enjoyable.
I currently have a 3DS (not the New version) and had an older DSi XL. I found the pixelation of the XL to be almost unbearable at the time. I understand the software is getting better and higher resolutions are probably more common now, and at the time the XL concept was new, so less thought was probably put into the overall experience for these larger screened devices. Maybe the blown-up appearance isn't as big a deal with the 3DS XL?
Shops like jb and eb usually have display models you can try out