Exact same anime set, F/x or Mac, which would you choose?

[buffgod]

The F/x sets that I have ordered that have given me problems are:
Yami no matsuei
Roruni Kenshin movie box set
Onegai teacher
outlaw star
Vampire hunter D
King of bandit jing
msamune shirow movie set

F/x I bought with out problems
Blue Gender
X
Helsing
Record of lodos war
Weis cruz

I'v ordered numerous from Mac and the only set that had issues was Dual

AlSo I would like to note that none of these sets were bought around X-mas time