Wow, glad to see such (relatively) supportive responses.
Relic- You hit the nail on the head as far as meta goes. The majority of the lists in my local meta are hybrid.
As for the Pathfinders, I love them dearly. They were originally a part of the list, but those 25 points made the difference in being able to take the jetbikes. I just couldn't quite justify them.
The Avatar, however, I don't regret at all. He's amazing, but in my list/meta I find the additional fortune and guide makes more of a difference. The biggest issue with losing the Avatar is the lack of fearless, so I cannot afford to run guardians, but other than that I have very few issues. Everything is
LD 9 or better anyhow.
Deuseviscerator- When it comes to the Avatar he does two major things: Fire Magnet, and Fearless. Fearless is mitigated by good
LD and 2 LD10 characters in units. Fire Magnet is handled, oddly enough, by Aspect Warriors. Depending on opponent I place a farseer in each of the 2 most threatening units. I either place them in cover or screen them (often with harlies) so they always have a cover save. Fortune plus cover is a pain to get through. As anyone who uses Seer Council will attest, rerolled 4+ is a pain to get through. That is also why I run 10 man
FD; the extra wounds in a unit that will have fortune makes them ridiculously hard to drop.
Winterman- See above?

I wish I had the points for the Exarch. Ignoring cover is brutal, especially against
KFF Orks, but I need the bodies more. Walkers are very effective, and the moment a parking lot guard army moves to town I'll have to make that shift, but until then I love my reapers. Meta dependent, but in the right meta they are gods.
MrTau- I think you are the only person to comment so far with whom I actively disagree. Banshees would not fit in my list at all; I would venture to say they almost never fit in a foot list. They die like flies at range, so I would have to dedicate a fortune to them. If they do get in to combat, they are only really better than Harlies or Scorpions against
MEQ, and I don't fear
MEQ with 19
FD and a unit of Reapers firing. Scorpions DO fit in many foot lists, at least partially due to outflank, but mine is not one of them. Outflanking troops don't provide a screen. Cheaper is not the same as more efficient. As for dropping dragons for
EML walkers: They don't occupy the same slot. I would have to drop either
WL's or Reapers. In addition,
FD can kill more than one tank when they are not treated as suicide troops. When fortuned it takes quite a bit of fire to drop them.
Powerguy- Can't really refute your statements, as you are quite correct. I lack long range
AT, and
FD are very short range. A little bit of creative deployment/use and (thankfully) a mech light meta combine to make it quite viable for me, though. Besides, most torrent occurs within 24", that being the range of primary anti-infantry weapons like the almighty bolter. Once I'm that close, things tend to go downhill rapidly for my opponent.

That being said, this is not a list I would take to a
GT.