Engine swap

[saltlife728]

Well guys this is what I got. I have an 88 V20 with an 3.7 I/O. Since I have had this boat I have changed out alot of parts on this thing. Right now the starter is out on the boat and I was thinking that it might be time for me to change out the motor and repower this thing. What type of motor should I go with? I was thinking about getting the 3.0 but I have seen that some have been going with the 4.3. Or should I just stick with my 3.7. Any input would be nice. Thanks