Pushing all in vs. betting enough to put the villian all in...

[People_Mover]

Example: Hero and Villian are in a hand together with these stacks remaining at the river.

HERO = 25K
Villian = 16K

Which do you think is more effective in made hands or bluffing? Betting 16K or just pushing for 25K? Is this another part of the game to mix it up? As villian, would you go more into a think tank mode of someone bets exactly the amount you have rather than just push all in against you?

just something I've seen a lot lately....and wanted some opinions

[stone_7]

What is wrong with 10k or 12k which commits villain but does not appear to cost as much. That being said I like betting exactly what my opponent has. I imagine that it sends the signal that I am out for them. In reality I think most people are not going to care either way.