I'll list some trends from the past seasons regarding the winner...there always seems to be a pattern...

* The Final 2: when there's one w/ a good edit (fan favorite) and one w/ a bad edit, the good one is usually the winner
* The winner never emerges in the early episodes. Usually, he/she develop a love story beginning at final 6.
* The front runner in the first few episodes is never the winner.
* The Impression Rose winner never wins. Hence, the 'curse of the first rose'
* Usually a lot of scenes are cut out regarding the winner esp. when the chemistry is too obvious so u'll notice that some things mentioned are never seen.

* In the personal interviews, the winner is never the one with the most of those. Usually the Final 2/3 get the most air time. The final one gets decent coverage, but not the most.
* There's always controversy...someone is always the trouble maker...don't expect that person to win, but he/she will usually last til final 6 for entertainment purposes!

Hope that helps! If you guys think of any more...feel free to add it here!