I think it's completely unfounded at this point to complain about Assassin and Blind Eye. It's also completely off base to compare Ghost Pro in Black Ops to Assassin and Blind Eye in MW3. Both very different games with different balance.
First of all, there are more options for killstreaks in MW3 in the way of Strike Packages. Obviously, Specialist will have no UAV. Since Assault Strike Package kills "chain", you're likely going to see the ever present and popular Predator to start the chain. Lastly, with regards to Support, the UAV is at 4, and since that streak persists through death, the player will have to "get through" all their streaks before it resets and goes back to the UAV. I also imagine a lot of people will run higher things in the Support Package like Ballistic Vests, Stealth Bomber, and Juggernaut.
In Black Ops there were no options and because killstreaks don't chain (count towards the next), so people rarely risked the higher killstreaks. Ultimately, Ghost became overpowered not because of what it was, but because UAV spam (from Hardline) because so prevelant.
Personally, I consider myself an above average "veteran" and I do not use Ghost in Black Ops. I use Hardline and Flak Jacket mainly, and sometimes run Lightweight. Considering you can shoot down a UAV in seconds or throw up a Counter, I find Ghost pretty useless. Hardline Pro is awesome in Black Ops (Especially with a Care Package) and Hardline Pro and Blast Shield Pro will be even more epic in MW3. Those will be my choice perks for Tier 2 and I will probably run Blind Eye Pro so I can shoot down UAVs even quicker.
Guys come on we kicked ( I dont know if Im allowed to use the word ass) butt 
