MASKED-IN LIP-SYNC FACE OF DOOM!
*cough*
<mindless ranting during a heat wave>
Ah.. yes. There has been many good points already. My personal point of view to lip-syncing is.. don't. This is only because I tend to enjoy something else in the AMVs I watch, so nevermind that.
There are editors who like to make lip-sync and there are viewers that enjoy them. To them it works.. even with drama AMVs. So there will (and with gritted teeth I also say should) be more lip-synced AMVs in the future.
Just make them good, ok.
It was mentioned that 90% of poor lip sync is fillers. I think the 90% comes from editors not seeing the difference of singing/talking. What makes my eyebrow twitch is these intensely sung lyrics fitted with scenes where the anime character is only talking. Not singing, not even yelling/screaming. Just having a conversation with much, some or none animated movement. It has been already mentioned that more spoken-like lyrics work better than more intense singing.
This problem can be reduced considerably with the comic factor, which brings the topic back to already mentioned comedy/fun AVMs. I also think that lip sync works MUCH better with comedic AMVs than it does with serious ones. (and this is not only because lip-sync itself is silly enough to force a smile)
Basically with lip-sync goes the same thumb rule that goes with effects. If you
really think it will add something to your AMV, do it. If it won't, leave it out.
The lost point here is that no matter what you do, you can't please them all. So if you add MAS*cough* lip-sync, don't get too discouraged if you get opinion-chewed-out (like I scolded Gene once) by people with other school of AMVing. There are right and wrong ways to make lip sync, but there's also viewers that will see all the ways a wrong way
</mindless ranting etc..>
<heat stroke>