What are the advantages of having a aluminium frame? are there any advantages that an aluminium body brings to the tables over carbon frames?
I suppose you mean "apart from price"?

The other important differences are: 


Lightness: Carbon is generally lighter, but not always.  It is possible to buy alu frames that are lighter than some carbon frames. 
Comfort: Generally, alu bikes are stiffer and less comfortable than carbon bikes.  
Strength: Simply, metal bends and carbon breaks, but both can be repaired equally successfully these days!  
Price!!  Generally, like for like carbon frames will be more expensive.  


The real questions is "will a carbon bike make a difference to YOU".