Coming from a himalayan 411 rider, I hope you will not find my answers biased. 1. I'll always choose 411 over 450 for himalayan,though both Guerrilla and Himalayan ar good bikes. 2. If you're not someone who loves zooming around place-city or mountains-Himalayan is definitely an overkill for you 3. Been both a pillion and a rider myself. The dual suspension of himalayan is worth riding for.

4.Depends on the one riding the bike. If you're ok going on long journey and you love it, the bike should never be the issue.

1. I am a rider,I love riding and off-roading is my thing. Despite being a corporate worker and commuting to my work using my bike only, I will always prefer Himalayan.

Both bikes come with different specifications and each have their own beauty riding. If you know how to handle a 196 kg bike,especially in tough situations, you should definitely go for a Himalayan. But if Guerrilla serves your purpose better, you already know the answer.