I'm not sure, I have one of each except for an XL. I think my 2 favs. have to be teacup and xlarge, a little different, but I love extremes. lol! JK. It's not that I love extremes, I just love giant dogs and tiny dogs. Chihuahuas and Standard Poodles. :)
I like the X-large size.I dont like really small dogs...too fragile and cant do much with them.
you dont know my frenchies ! lol. they are small, but not tiny. average 22-28 pound. they are solid and sturdy little rascals. they keep me on my toes.when they get wound up , they get the zoomies. they run all through the house and will bounce off me. i know i have been hit ! lol but when its time to wind down, they are both in my lap, showering me with kisses. and they love hugs too. highly intelligent and sturdy little love bugs. they are refered to as "little clowns" for their unique personalities. i have had alot of breeds in my 50 years, but nothing ever compared to these two little goofballs !. i will never have another breed again. they have totally captivated me. lol