Chossing between regression models
The suggestion in the comment is appropriate.
Still, if you want to try NN, you may try these suggestions -
 - None of the models seems best as per general guidlines
 - Keep ReLu as all the hidden layer, linear for last layer(Regression)
 - Standardization/Normalization must be done before training
 - Add Batch normalization layer
Can also try
 Since your output seems like Classes [0,1,2]. Try a Classification model for power and a Regression model for output angle
 For classification - last activation - Softmax, Loss - categorical_cross_entropy, Label - one-hot encoded