List of JDBC drivers for SQL Server 2008 (comparison)

Question

I am in the process of evaluating a whole whack of JDBC drivers, specifically to use with SQL Server 2008 with Windows authentication. I gathered a list of ones that I found and have listed them below.

My question is, are there any other JDBC drivers that are compatible with SQL Server 2008 that I should also look into reviewing?

1. Microsoft JDBC driver

   URL: http://msdn.microsoft.com/en-us/sqlserver/aa937724

   Pros: Official Microsoft JDBC driver for SQL Server 2008! Based on the JNetDirect JSQLConnect driver v3 as it was purchased by Microsoft a few years ago and they have been building on top of it since. I was told this by JNetDirect JSQLConnect's support.

   Cons: Seems to have a lot of connectivity/stability issues, don't believe me, just Google about it :). Doesn't have a way of disabling statement preparation/pooling which is something I am looking for.

   JDBC compliance: Claims to be be JDBC 4.0 compliant although many methods throw UnimplementedException!!!!

   JDBC Type: 4

   Price: Free

2. Progress DataDirect

   URL: http://www.datadirect.com/index.html

   Pros: Claims to be top class, used by numerous applications like Informatica, etc and the company is been around for ages! Have quick support - I have dealt with them briefly.

   Cons: ?

   JDBC compliance: Claims to be be JDBC 4.0 compliant

   JDBC Type: 5

   Price: Not free

3. JTDS

   URL: http://jtds.sourceforge.net/

   Pros: Much faster than the official Microsoft JDBC driver. Has a way of disabling prepared statements.

   Cons: ?

   JDBC compliance: JDBC 3.0 compliant only. This is a deal breaker for me because important methods like .validate() and .isClosed() aren't supported because these are JDBC 4.0 methods.

   JDBC Type: 4

   Price: Free - Open Source

4. INET Merlia

   URL: http://www.inetsoftware.de/products/jdbc-driver/ms-sql/merlia

   Pros: Much faster than the official Microsoft JDBC driver. Has a way to disable prepared statements.

   Cons: ?

   JDBC compliance: Claims to be be JDBC 3.0/4.0 compliant

   JDBC Type: 4

   Price: Not free

5. JNetDirect JSQLConnect

   URL: http://www.jnetdirect.com/products/jsqlconnect.html

   Pros: Much faster than the official Microsoft JDBC driver. Has a way to disable prepared statements

   Cons: ?

   JDBC compliance: Claims to be be JDBC 3.0/4.0 compliant

   JDBC Type: 4

   Price: Free for a single user with only 1 database connection.

If you can keep your comments clean, I'll happily update this post with any others.