btomlin,
The wall pedestal has become popular within the last few years but still does not get requested all that often because people have a set idea of what a mount looks like and that is all they will consider most of the time. Just remember that you don' t have to choose a mount position just because that is how everyone has them done. The most popular seems to be ears forward and alert for some reason instead of a relaxed deer with ears turned in complimenting positions. The semi sneak and semi upright are different poses. The level of the head determines the pose. The Full Sneak being the lowest position then the Semi Sneak, Semi Upright and the Full Upright. Some sculptors vary in exact positioning of the head and have different head positions for some of the poses, such as " head up" , meaning the head is tilted back slightly with the lower jawline being above horizontal. The Offset means exactly what it says, the form is offset so that more of one shoulder is visible than the other. Most any pose can be purchased in a straight, left or right version which is given as the deer' s left or right. Some forms are available that have only been sculpted in one size or orientation and are normally specialty poses.
I don' t know that I have a favorite form but would have to say that I like to alter the poses for myself to tell some sort of story using a full pedestal mount. Of course there are few people that are willing to pay for this type of mount. If I were to choose the standard form that I like best I would say I like the offset semi sneak in a head up position. Whichever position you choose just make sure you use a taxidermist that you have chosen because of his quality of work and not because that is who gives you the best bargain. If you are unfamiliar with what means quality do some research on www.Taxidermy.net to familiarize yourself with the difference between an ok job and a great job.