Personally I like the E1-B better from a general looks and operational standpoint. Those round engines look sweet too.
I downloaded the E-2C and found some issues with the FM too. Contact points area had some issues (pitch, height, one main longer than the other). If you are interested:
[contact_points]
static_pitch = 2
static_cg_height = 5.0
tailwheel_lock = 0
gear_system_type = 1
max_number_of_points = 5
point.0 = 1, 20.5, 0, -5.8, 1181, 0, 1, 39.9, 0.296, 1.5, 0.9516, 4.8, 4.8, 0, 184, 184
point.1 = 1, -1.67, -10.2, -5.5, 1574, 1, 1.5, 0, 0.642, 2.5, 0.8152, 4.5, 5.2, 2, 184, 184
point.2 = 1, -1.67, 10.2, -5.5, 1574, 2, 1.5, 0, 0.642, 2.5, 0.8152, 4.8, 4.9, 3, 184, 184
point.3 = 2, -22.67, 0, 0.00, 787, 0, 0.000, 0.0, 0.000, 0.0, 0.0000, 0.0, 0.0, 9, 0.0, 0.0
point.4 = 2, 23.08, 0, -1.50, 787, 0, 0.000, 0.0, 0.000, 0.0, 0.0000, 0.0, 0.0, 4, 0.0, 0.0
Also found the engines were not properly located, so I changed the parameters as follows:
[GeneralEngineData]
//0=Piston, 1=Jet, 2=None, 3=Helo-Turbine, 4=Rocket, 5=Turboprop
engine_type = 5
fuel_flow_scalar = 1.0
min_throttle_limit = -0.25
engine.0 = 8.3, -10.2, 0.5
engine.1 = 8.3, 10.2, 0.5
The CoG was off so I corrected this way to bring it forward from 35% MAC to 26%:
wing_pos_apex_lon = 1.6 //2.1
Increased the TAS to 304 knots/350MPH ground speed at 15000 feet (not sure about the altitude at which this should be tested).
Other minor changes I do not recall now.
If you want the air and cfg files, I will post them.
She seems to fly very controllably but I am not familiar with her flight characteristics so I did not change roll, pitch, drag, yaw, or lift parameters.