Strongest party family in national opinion polls in the EU member states

Composition of the EP

Situation of the EPP family in the EU

• Opinion polls from 11 countries indicate the EPP as the strongest political group, with the Socialists leading in 6 countries, but this includes the currently suspended Slovak parties Smer and Hlas.
• The ID group (far-right), and the liberal Renew are at the forefront in 3 countries each.
• The Left and the ECR top the polls in one country a piece.
• In Hungary, Fidesz holds the lead, though it is not yet affiliated with any particular party group.
• In Latvia, parties that are officially independent are in the lead.

When examining the strongest individual party rather than the largest party family:

• The EPP is leading in 13 countries, the Socialists in 6 (including Smer), the ID in 4, and the ECR, the Left, and the Liberals each lead in one country.
• Fidesz in Hungary, not yet part of a new party family but intending to join the ECR group in the EP, is ahead.
• Leadership margins over other party families or individual parties are often narrow, with close contests in countries like Portugal, Poland, Cyprus, Belgium, Denmark, Lithuania and Bulgaria.
• Poll variations sometimes show different frontrunners due to the close nature of these political races.

Situation in the European Council

• 10 of the 27 heads of state or government in the European Council belong to the EPP family. If the President of Cyprus (formerly a member of an EPP party, now independent, but still invited to EPP summits) is included, the EPP has 11 heads of state and government in the European Council. In the course of March, the EPP could provide another head of government due to the agreed rotation in Bulgaria (Mariya Gabriel).
• 6 (5) belong to the Social Democrats/Socialists (S&D) (but only if Smer/Robert Fico is included despite his suspension from the PES).
• 6 heads of state and government belong to the Liberals/Renew. soon possibly only 5 (see above).
• 2 belong to the Eurosceptic conservatives of the ECR.
• 3 are formally independent, including the Prime Minister of Hungary. If the President of Cyprus is not included (see above). there would only be 2 independents.
  
  You can find the entire analysis here.