I have a yorkie and a morkie. My yorkie seems to be a faster learner but my morkie is always following me around, wants to cuddle, and loves giving kisses. I guess that's the maltese side of her as they are more of a lap dog than yorkies... and yorkies are known to be lap dogs too. Get the morkie.. and if later on you really want a yorkie, get a yorkie too!
Here's my 2 babies.