I've always tried to be on the "loser" team ...
Typically I'm a Terrorist just from the random team selection... which is almost always the losing team. Rarely are the T's actually stacked. (it's typically teamwork at it's finest, not stacking)
The thing from the OP that needs to get mentioned. Admins tell e's to switch...
I can't believe how many times I've actually seen this. Are the admins T when saying this half the time? NO! ... They're sitting on CT, keeping the teams uneven and getting their "points/plinks/kdr" and trying to "look" like the good guys when they ask/tell others to join the unstacked team. Why would anyone listen when the people telling others to switch won't do it themselves? Admins need to set an example, by actually switching ... Not just asking/telling others what to do.
Plus, if you think you're not "good" as a Terrorist ... what makes you think you'll ever get better if you never play as one?