Majestic is definitely a step down from Sideshow. Their sculpts are a bit rougher in appearance and the tailoring is a bit dodgy. But a decent alternative if Sideshow takes a definitive "no" stance to the Serenity verse.
Here are some past MC reviews for your persual. He has some great pictures to use as reference. Also, the Majestic is newer company and is constantly refining their offerings. Besides, every one I've talked to says that these figures look better in person.
Here's the Majestic Barnabus:
https://www.mwctoys.com/REVIEW_021706a.htm
Here's Anton Phibes:
https://www.mwctoys.com/REVIEW_022706a.htm
And here's a couple of their first Battlestar Galactica offerings:
https://www.mwctoys.com/REVIEW_022706a.htm
And they are producing figures for the new Battlestar Galactica show. They are going to have a SDCC exclusive of the new Cylon. You can read about it on this thread:
https://sideshowcollectors.com/forums/showthread.php?t=8958
Hope this helps FF!!!