mod_bw vs mod_bwshare vs mod_cband

I know there is a lot of confusion over what to use and how to use it. This is what I've been able to gather from lightly looking over the documentation:

mod_bw: Will limit every user to a specific amount of bandwidth or limit the amount fo bandwidth per file type or file size.
Once you've "apt-get install libapache2-mod-bw" and restarted apache2, you can enter one of the configurations below in the custom directives for each subdomain:

Limit every user to a max of 10Kb/s on a vhost:
<IfModule mod_bw.c>
BandwidthModule On
ForceBandWidthModule On
Bandwidth all 10240
MinBandwidth all -1
</IfModule>

Limit al internal users to 1000 kb/s with a minimum of 50kb/s , and
files greater than 500kb to 50kb/s.
<IfModule mod_bw.c>
BandwidthModule On
ForceBandWidthModule On
Bandwidth all 1024000
MinBandwidth all 50000
LargeFileLimit * 500 50000
</IfModule>

Limit avi and mpg extensions to 20kb/s.
<IfModule mod_bw.c>
BandwidthModule On
ForceBandWidthModule On
LargeFileLimit .avi 1 20000
LargeFileLimit .mpg 1 20000
</IfModule>

mod_bwshare: Will limit how much bandwidth can be consumed with in a specified amount of time per IP from a specific directory or the whole site.
Once you've "apt-get install libapache2-mod-bwshare" and restarted apache2, you can enter one of the configuration below in the custom directives for each subdomain:

<IfModule mod_bwshare.c>
BW_tx1debt_max          25
BW_tx1cred_rate         0.095
BW_tx2debt_max          3000000
BW_tx2cred_rate         2500
</IfModule>
* I won't attempt to explain these parameters here, but you can find explanations here: http://www.topology.org/src/bwshare/README.html#config

mod_cband: Will limit users’ and virtualhosts’ bandwidth usage. The current versions can set virtualhosts’ and users’ bandwidth quotas, maximal download speed (like in mod_bandwidth), requests-per-second speed and the maximal number of simultaneous IP connections (like in mod_limitipconn)limit how much bandwidth can be consumed with in a specified amount of time from a specific directory or the whole site.
Once you've "apt-get install libapache2-mod-cband", and restarted apache2, you can enter one of the configurations below in the custom directives for each subdomain:

limit to 256k per user, 3 requests per second, 3 open connections and if they exceed they go down to 128k until they stop clicking on links for a few seconds:
<IfModule mod_cband.c>
CBandRemoteSpeed 256Kbps 3 3
CBandExceededSpeed 128kbps 2 3
</IfModule>
More examples here: http://dembol.org/blog/mod_cband/faq/