To be honest, i feel the same way. Avengers Le reminds me more of Tron LE and Avatar LE in terms of extra against the pro. With Xmen and AC/DC the differences were much bigger imo.
This doesn't mean it will be a bad game, just comparing here.

Dunno Markmon, Ok you get an extra ramp i agree. But compared to Xmen and AC/DC it seems like a step back instead of forward.

- AC/DC : Bell, Mini playfield, extra diverter ramp
- Xmen : Nightcrawler pop ups, Ice man ramp, moving disc.

And Avengers : Extra ramp, and moveable Hulk ramp.

To me it seems like a (small) step back. The other games extra are also more interactive then Avengers. Of course that's my opinion.
Also i'm not counting the drop targets.

That's another way of looking at it.