The Toy Biz Resident Evil figures are more animated looking than most of the figures from other companies. They also have somewhat of an anime vibe to them, although this isn't too noticeable on Sherry. The basic human figures are around 5 inches in this line, with Sherry being about 3 1/2 inches (she's just a kid, after all) and William standing about 7 3/4 inches tall. These figures might fit in with McFarlane's Walking Dead figures size-wise, although I wouldn't hesitate to throw William in alongside my NECA and Palisades Resident Evil figures. He's a little different in scale and style, but not enough to notice during a casual glance.
In looking at articulation, I'll start with Sherry,who has v-swiveled hips, a swivel waist, swivel shoulders, and a swivel neck. Because of her awkward legs (covered below), Sherry doesn't have much room for posing below the waist, but her slightly pre-posed arms do look good in a number of poses, even though she only has swivel joints. William has swivel hips, a swivel waist, a swivel shoulder on his smaller left arm, a ball joint shoulder and a hinged elbow on his larger left arm, a swivel right shoulder, a positionable eyeball on his right shoulder, and a swivel right elbow. Once again, the idea here is to just show that this guy was definitely built more for play than posing, but a variety of joints do give him some movement, keeping him far from static. He stands well on his own.