Question regarding rules and grouping best practices in Check Point

This might be an academic question.  What is the best practice for this 
scenario?  If you have for example 3 servers each running an application, the 
same application but different ports.  Microsoft SQL as the application with 
ports 1433 to 1439.  
 
Would you create separate rules for each, or group them together?  They are in 
the same subnet.  A visual diagram below:
 
Source        Destination        Service
server1        dbserver3          sqlportrangegroup  
server2        dbserver4
server3        dbserver1
 
-- OR --
 
Source        Destination        Service
server1        dbserver3        sqlport1437
 
server2        dbserver4        sqlport1433
 
server3        dbserver1        sqlport1438
 
In other words, to me it is simpler, more flexible to group all servers by 
service or function as in this case for SQL.  Or should you have a rule for 
each server.  This would isolate the server possibly from the other servers and 
other ports?
 
Any thoughts or opinions is appreciated.
 
Dave Ménard
 
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