Job Offer Dilemma

This week has been crazy with what seems like endless interviews.  Though the interviews have only been with 3 companies, I have had 2 rounds of interviews at each one.  The all offer something different that I am looking for. Here is the the scope of companies in order of my preference:

Pros  Cons Neutral

Company A:  

• Busy position with multiple responsibilities 
• Managed under multiple people
• Room for advancemnt
• Salary is exactly what I asked for
• Medical and Dental Benefits
• Life Insurance, Long Term Disability and Short Term Disability
• RSP Contributions after 1 year
• 3 weeks vacation + 10 personal days and 0.5 festival day of choice in July/August.
• Located downtown, public transit necessary or pay for parking $250+ per month.  
• Large firm with approx. 90 employees
• Reputable

Company B:

• Busy position with multiple responsibilities 
• Managed directly by partners
• No room for advancement
• Salary is significantly higher than asking
• No real benefit account, but $200.00/year flex account (covered under spouses benefits anyways)
• Long term Disability Insurance
• Located in suburb,  20 minute commute and free parking
• Small firm, with approx. 10 employees
• Overtime banked at 1 hour OT = 1.5 hours banked
• 2 weeks vacation (3 weeks after 2nd anniversary)
• Current staff seems significantly older in age
• Office sometimes closes early on Friday = free time off + bottle of wine from firm

Company C:

• Busy position with focus one task area
• Self Managed
• Little room for advancement
• Salary slightly below expectation
• Medical & Dental Benefits
• RSP Contributions after 1 year (group plan)
• Located Downtown, but public transit pass subsidized 24%
• Life Insurance and travel insurance
• Heath Account after 1 year (for gym passes or whatever promotes health)
• 2 weeks vacation
• Large firm with 100+ employees

My dilemma is that Company C, has presented me an offer,  however I am still waiting to hear from both Company A & C.  If I had only interviewed at company C, I would accept the position; however, there are points that attract me to company A & B.  I need to let Company C know by Monday afternoon if I want to proceed with the hiring process.  

Company A = 1st choice, but waiting for offer

Company B = an Awesome salary (money talks, right?), but waiting on offer

Company C = guaranteed employment!

Luckily I have the weekend to think about this!