I know this one's been done many times but I have my own take on it to offer. 
I've blended the 2 guitar parts in some places to make it more fun to play solo. 
There are a couple of licks to fatten it up.

The question about the A chords in this piece is "Should I play A and Asus2?" 
The answer is "Yes." Both chords work nicely throughout the piece. Transitioning 
from one to the other within a few beats, adds huge texture to the end of the 
phrases. Virtually every time you land on the A, it can change to the Asus2. 
If you play the A in a D chord formation, all second fret, instead of the 
traditional 3 string bar, it's very easy to lift the middle finger and go 
from A to Asus2. Careful in the chorus though, it's all Asus2.

The E/G# is a tough one to master, so you can play a G#min bar there instead...
the sheet music shows it as a G#min. Also, thwe B chords are a bit complex. 
At times a B5, a Badd4. But make it easy on yourself and always finger the B 
bar chord, then just play the appropriate strings...but really, the B works 
all the way through.

The verse phrases resolve in some form of C#m-B-A. To make these more 
interesting, I've worked out some picking patterns, modeled after the second 
guitar parts, to spice them up. The notes in the C#m are played in the 
standard 4th fret bar chord pattern...keep that index finger across all 
strings until it goes to the B. If there's some interest, 
I'll post a video lesson that shows how I play it.

First phrase of each verse.    Second phrase of each verse.

 C#m    B  A Asus2              C#m    B  A            Asus2 (to begin chorus)
--------------------           -----7-----------------------
----5---4--2-2p0----           -4h5----4--2------------0----
---6-6--4--2----2---           ----6---4--2------------2----
--6-----4--2-----2--           --------4--2-----2-2p0--2----
-4----------------0-           -4-----------2/4--------0----
--------------------           -----------------------------


Intro

E      E    G#m7  A  Asus2         E         E           G#m7  A  Asus2
--------------------------------------------------------------------------------------
---------------------------------2----------------------------------------2-0--0------
-----4---------4-------1-------2------------------4---------4-------1--------2--2-----
-4h6---4-2-4h6---4-2-1---2/4-2------------2---4h6---4-2-4h6---4-2-1---2/4-----2--2----
-------------------------------------2-2h4----------------------------------------2---
-0-----0---0-----0----------------------------0-----0---0-----0-----------------------



VERSE:

E                        B     
I'm gonna be here for ya baby
E/G#                A    Asus2
I'll be a man of my word
E                        B                     C#m   B  A Asus2
Speak the language in a voice that you have never heard


E                         B
I wanna sleep with you forever,
 E/G#                   A  Asus2
And I wanna die in your arms
E               B                     C#m       B A
In a cabin by a meadow where the wild bees swarm


CHORUS:


Asus2             E
    And I'm gonna love you
Asus2           E
    like nobody loves you
Asus2                  C#m         B           E
    And I'll earn your trust makin memories of us


VERSE:

E                  B 
I wanna honor your mother
E/G#                    A  Asus2                         
I wanna learn from your pa'
E                  B                    C#m   B A Asus2 
I wanna steal your attention like a bad outlaw


E                        B
I wanna stand out in a crowd for you
E/G#        A  Asus2
A man among men
E                       B                  C#m   B A
I wanna make your world better than it's ever been,


CHORUS:


Asus2             E
    And I'm gonna love you 
Asus2           E
    Like nobody loves you
Asus2                  C#m         B           E
    And I'll earn your trust makin memories of us


BRIDGE:

G#m7                   C#m
  we'll follow the rainbow,
A            E
wherever the four winds blow,
G#m7           C#m 
  They'll be a new day,
Asus2       B       
  Comin' your way,


VERSE:

E                         B  
I'm gonna be here for you from now on
E/G#              A  Asus2
This you know somehow
E                            B                 C#m      B A Asus2
You've been stretched to the limits but it's alright now

E                        B 
And I'm gonna make you a promise
E/G#                  A   Asus2    
If there's life after this
E                     B                    C#m      B A   
I'm gonna be there to meet you with a warm wet kiss

CHORUS:


Asus2             E
    And I'm gonna love you 
Asus2           E
    Like nobody loves you
Asus2                  C#m         B           E
    And I'll earn your trust makin memories of us
Asus2                 E
    Oh, and I'm gonna love you 
Asus2           E          
    Like nobody loves you
   A                  C#m         B            E
    And I'll win your trust makin memories of us 


TAG: 

E    G#m7     A                
   Oh           
 E     E  G#m7      A   E
 Oooh      Oh Baby