If you're gonna use an eboost, make sure you use the eboost2, they're far better than the earlier ones. I haven't used one personally, but their configuration abilities seem head and shoulders above it's competitiors.
In the past, I've had and seen good success with the blitz dual solenoid controllers, but as far as bang for your buck goes, use a bleed good valve. Provided you install it properly you won't have problems with boost creep, etc.
The advantage of the electronic controllers is that they can show the wastegate no pressure until target boost is reached, bringing boost on faster by not having the waste gate open prematurely. In practice, it's only 2-300 rpm, so if that's worth the $500 premium for you, go right ahead.
I personally don't believe in multi-stage boost controllers. Your right foot is the best boost controller around .. if you don't want full boost, don't put it all the way down :lol: