Interior comfort and ergonomic panel design the Five wins every time over the dated Baron
Pace I'm not sure which Barons you've seen but even a B55 is far more comfortable than a V. Factor in the 58 which is even better and brings a standard cockpit layout with none of the 55's 'quirks', with the new interior from around 3 years ago and there is no comparison.
The Baron is more expensive however, so it could be a case of looking at whats available for the budget.
Whenever we taxi past a Baron, there always comments along the lines of what a beautiful aircraft, love to fly one etc etc. The seneca never attracts these comments.