I had a free night last night so I decided to put my figures to test, by playing throught the entirety of the Village and Castle on easy and then on normal. I found that so far I appear to have overestimated a little...
Here are my kill figures for each chapter. A few notes first though:
-I had a Chicago Typewriter, infinite Handcannon and fully upgraded semi-auto rifle for both easy and normal.
-I doubled back to kill new Ganados and other enemies that spawn whenever possible, for example on the alternative route back to the church from the lake, went back into the church to kill the two Zealot bowman who tried to kill Leon in the cutscene, outside the castle gate (they don't spawn on easy mode), the Novistador sewer, at the beginning of Ch 4-1 when you go back to get the Broken Butterfly, and on the clocktower on the upper level (again, doesn't happen on easy).
- Took both routes in Chapter 2-3 to get from the cabin area to the gondola lift area.
- I gave the church bell a massive spray with the CTW in Chapter 1-3, on both easy and normal. This should attract an additional six Ganados, and they come from the direction of the tunnel that goes back to the centre of the village.
- During the two Garradors fight, I stayed away from the top part of the room so Zealots wouldn't spawn down the bottom.
- During the Salazar fight, I didn't go down the bottom once, so that the spider Plagas wouldn't spawn. Because they'll spawn all day if you let them so that would distort the figures.
Anyhow, these are the figures I came up with.
Chapter 1-1
Easy- 37 kills
Normal- 40 kills
Chapter 1-2
Easy- 52 kills
Normal- 54 kills
Chapter 1-3
Easy- 61 kills
Normal- 61 kills
Total so far=
Easy 150, Normal 155
Chapter 2-1
Easy- 29 kills
Normal- 32 kills
Chapter 2-2
Easy- 52 kills
Normal- 70 kills
Chapter 2-3
Easy- 54 kills
Normal- 54 kills
Total so far
Easy 285, Normal 311
Chapter 3-1
Easy 63 kills
Normal 91 kills
Chapter 3-2
Easy 44 kills
Normal 67 kills
Chapter 3-3
Easy 11 kills
Normal 25 kills
Chapter 3-4
Easy 11 kills
Normal 13 kills
Total so far
Easy 414, Normal 507
Chapter 4-1
Easy 32 kills
Normal 90 kills
Chapter 4-2
Easy 38 kills
Normal 57 kills
Chapter 4-3
Easy 59 kills
Normal 71 kills
Chapter 4-4
Easy 47 kills
Normal 53 kills
Total after Chapter 4
Easy 590 kills
Normal 778 kills
Will do a Chapter 5 comparison when I get a chance. But I don't think the difference there is THAT much. Not compared to the castle anyway.
What's interesting is that at the end of the village, I had only killed 26 more enemies on normal mode- but at the end of the castle this figure had swelled to 188! So I killed 162 more enemies in the castle on normal compared to easy- 305 in easy compared to 467 in normal.
If you look at my earlier post where I made estimated comparisons, you'll see I overestimated the difference in the village (my estimates totalled 43, in reality when I played it was only 26), but that I got the castle almost exactly right (my estimates totalled 158, the reality was in fact slightly larger at 162).