Who do you like better?
Abreu gets on base more often, and has a better BB rate.
Abreu has more speed.
Abreu wouldn't cost the Reds any players to acquire, only cash.
Dye would cost the Reds players and cash.
Dye is right handed.
Dye has more power.
Both are 34 years old.
Both are mediocre right fielders.
Personally, I'd rather have Abreu.