Got a full set of these figures today. Now I need to go open them...

Well, after opening these guys, here are my thoughts:
BOBA FETT- Not too great. The colors are cool and he makes a great generic Mandalorian warrior, but he is not as good as the other figures in this wave. Easily my least favorite.
LUKE SKYWALKER- Great figure! Super articulation and great accessories! The only negatives are the cloth upper tunic, which is too large behind the neck and the red paint on the hand. I hope Hasbro releases a Death Star II Luke soon, as it would be an easy retool/kitbash with this figure. As much as I enjoy this figure, he's not one of my favorites.
DARTH VADER- Awesome figure, but yet again, not one of my favorites. The helmet he wears in the package is very cool, but the second helmet looks almost exactly like a normal Vader helmet. Good articulation and an awesome pistol. I can't wait to set him up fighting Luke and Obi-Wan.
CZ-4- Another great figure. Awesome weathering and excellent sculpt. Articulation is good, and it makes me more excited about the upcoming 4-LOM figure. The only thing better than a SA droid is a SA droid with a huge rifle.
ELIS HELROT- Cool sculpt and good articulation. The bar piece is awesome, espacially when connected to ONITH's. The figure itself is kind of scary looking, but in a good way.
ONITH- Easily my favorite of the wave, along with Umpass-Stay. The bar piece is awesome, as is the articulation and detail in the figure's sculpt. The only downside is the hard plastic skirt that prevents sitting, and the recycled pistol from GREEDO. ELIS' pistol is also dissapointing, but it looks more generic.
UMPASS STAY- My other favorite from Wave 4. Articulation is decent and reminds me of the MUSTAFAR LAVA MINER figure. The detail on the sculpt is amazing, and the removable head cloth is a nice touch. I am looking forward to getting the Jabba's Palace Battle Packs to give this figure some friends.