I might consider FF Advent Children to be a ringer in this case, as its built using the tech for FF Spirits Within. I haven't seen the other example there, but it does look well done.
I've got a couple simple rules for what I consider good CG, most mix & matches (where part is CG and part is hand drawn) won't meet these basic criteria.
1: Coherent color palette. All parts of the animation must mesh color-wise, if they don't there is a problem.
2: Consistent lighting, when the lighting is coming from the front on one model and from the side on the model right next to it without an apparent source, there is a problem.
3: Fluid movement, if it's jerky, twitchy, floats, or is otherwise not fluid there is a problem.
Some examples of western CG that I feel do it right:
Dragon Booster: 2004 Smooth, though they use stills to fill out time just like most animation, good color, lighting is almost universally consistent.
Max Steel: 2000 While badly dated by current standards it mostly holds up to my requirements, animation is occasionally twitchy, but not often, color palette is consistent, lighting is very solid.
Jimmy Neutron: 2002 Another one that is definitely somewhat dated but meets criterion, animations are very smooth, color palette is extremely consistent, lighting is basic but also very consistent.
I can go dig up a lot more if you want them.