Default advantages and disadvantages with LG G2

Hi,
I have a LG G2. But I'm not comfortable with LG G2 size. Is too big for me.
I would like to change to Xperia z1 compact because have FM radio (like G2) and is slightly smaller.
Before I build it I would like to know the advantages and disadvantages with these model.
Could you help me please?
Many thanks and sorry for my English!