Spain vs Spain + Portugal (15 days, mid-June) — itinerary feedback?

Hi, I’ve been reading past threads, but I’m still unsure how to structure this trip and would really appreciate some feedback.

Trip details:

• ~15 days total (mid-June, somewhat flexible)
• Flying from the US (likely into Barcelona, out of Lisbon)
• Budget: mid-range (mix of hotels + occasional nicer stays)
• Interests: food, walkable cities, history, some architecture, not big on rushing or checking boxes

What I’ve researched so far:

I came up with two rough options:

Option A (Spain only):

• Barcelona (4 days)
• Madrid (3 days)
• Seville (3–4 days)
• Granada (2 days)

Option B (Spain + Portugal):

• Barcelona (3–4 days)
• Seville (3 days)
• Lisbon (3 days)
• Porto (2–3 days)

My questions:

• Does Option B feel too rushed given the travel time between Spain and Portugal?
• If sticking to Spain, would you prioritize Granada over somewhere like Valencia or more time in Madrid?
• Any adjustments you’d make to improve pacing?