UIEventListener.Get or OnClick Delegate

[poolts]

I've seen this topic covered in a few different places in the forum, but wanted a bit more clarification on when to use a certain one and their performance implications (just for good general practice really).

So:

I've read that UIEventListener.Get is used for remote events (i.e. in a config script where you assign delegates to several buttons). Therefore I guess it maybe beneficial if you have a lot of buttons that do the same thing to do:

1.        
2. void OnEnable()
3. {
4.     foreach(UIButton b in m_buttons)
5.     {
6.         UIEventListener.Get(b.gameObject).onClick += HandleButton;
7.     }
8. }
9.  

Although minimal, would the b.gameObject (which I guess is effectively b.GetComponent<GameObject>()) cause a problem if the loop was carried out on a large number of buttons?

My first thought when using buttons was to do:

1. void OnEnable()
2. {
3.     myButton.onClick += HandleMyButtonClick();
4. }
5.  

However, that wasn't the right way to do it, as onClick uses a List<EventDelegate> so my next step was to try myButton.onClick.Add(Delegate), which also wasn't right 

So, I came full circle and thought why not just add the monobehaviour scripts to the on click property in the inspector (something I was a bit reluctant to do, as I thought it may use reflection or SendMessage and thus affect performance).

So question time:

Is it just best to use the on click property in the inspector and select a delegate? Will this affect performance (via SendMessage / Reflection, if it uses them that is)?

If so should I use UIEventListener.Get instead? Seems like I should just use the inspector property the majority of the time, but would like to know either way just for best practice when setting up my UI.

Thanks in advance 

[ArenMook]

EventDelegate.Add(button.onClick, YourFunc);

[poolts]

Thanks Are there any performance differences between using EventDelegate.Add(button.onClick, YourFunc) in script or just hooking up the delegate in the inspector (i.e. does it use SendMessage, reflection or any costly calls) ?

[ArenMook]

Event delegate doesn't use SendMessage unless it's falling back to it because of the platform (WP8/WSA/Flash).

Both EventDelegate.Add and inspector-chosen delegates are the same thing.